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词汇 dys-
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dys-
pref.（前缀）
  1. Abnormal:
    不正常的：
    dysplasia.
    发育异常
    1. Impaired:
      坏的：
      dysgraphia.
      书写困难
    2. Difficult:
      困难的：
      dysphonia.
      发音困难
  3. Bad:
    坏的：
    dyslogistic.
    不赞成的

语源
  1. Latin dys- [bad]
    拉丁语 dys- [坏的]
  2. from Greek dus- * see dus-
    源自 希腊语 dus- *参见 dus-
dys-

prefix

diseased, abnormal, or faulty
⇒ dysentery
⇒ dyslexia
difficult or painful
⇒ dysuria
unfavourable or bad
⇒ dyslogistic

Origin

via Latin from Greek dus-

dys-

Word Origin
1
a combining form meaning “ill,” “bad,” used in the formation of compound words:
dysfunction.
Origin
< Greek; cognate with Old Norse tor-, German zer-, Sanskrit dus-

Related Words

  • dysacousia
  • dysarthria
  • dyscrasia
  • dysergia
  • dyslexia
  • dyslogia
dys-a prefix, especially medical, indicating difficulty, poor condition, as in dysphoria.
[Greek: hard, bad, unlucky]
dys-
prefix
 ETYMOLOGY  Latin dys-, from Greek; akin to Old English tō-, te- apart, Sanskrit dus- bad, difficult
1. abnormal
    dysplasia
2. difficult
    dysphagia
— compare eu-
3. impaired
    dysfunction
4. bad
    dyslogistic
— compare eu-
dys-
/dɪs/  
combining form
bad; difficult (used especially in medical terms)
表示“坏的”; “困难的”（尤用于医学术语中）：

dyspepsia

dysphasia.

词源
from Greek dus-; related to German zer-, also to Old English to-.
▪ I.dys-obs. spelling of dis-, in many words.▪ II.dys-, prefix|dɪs|repr. Gr. δυσ- [= Skr. dus-, OTeut. *tuz-, OHG. zúr- (Ger. zer-), ON. tor-, OE. tó- in to-break, etc.] ‘inseparable prefix, opp. to εὖ [see eu-], with notion of hard, bad, unlucky, etc.; destroying the good sense of a word, or increasing its bad sense’ (Liddell and Scott). In Eng. used in many words, chiefly scientific, derived or compounded from Greek; the more important of these are entered as Main words; others (mostly pathological) follow here.dysanˈgelical a. (nonce-wd.), used in opposition to evangelical; dyˈsarthria [Gr. ἄρθρον joint, articulation], defective or deranged articulation in speaking; whence dyˈsarthric a., belonging to dysarthria; dysarthrosis |dɪsɑːˈθrəʊsɪs| [Gr. ἄρθρωσις articulation], (a) faulty articulation or congenital dislocation of a joint; (b) = dysarthria; dysbasia |-ˈbeɪsɪə| [Gr. βάσις stepping, step], difficulty in walking; dyschezia |-ˈkiːzɪə| [Gr. χέζ-εῖν to defecate + -ia1], difficult or painful defecation; dyscholic |-ˈkɒlɪk|, a. [Gr. χολή bile], arising from bilious disorder (nonce-wd.); dyschromaˈtopsia, -ˈchromatopsy [Gr. χρωµατ- colour + -οψία seeing, sight], deranged vision of colours, colour-blindness; hence dyschromaˈtoptic a., colour-blind; ˈdyschronous a., not agreeing as to time, separate as to time; spec. in Ecology, not overlapping in period of blooming; dysciˈnesia: see dyskinesia; dysepuˈlotic, -ical adjs. [Gr. ἐπουλωτικός (Galen) promoting cicatrization], difficult to heal or cicatrize; dysgenesis |-ˈdʒɛnɪsɪs| [Gr. γένεσις production], difficulty in breeding; spec. used by Broca for that degree of sexual affinity in which the offspring are sterile among themselves, but capable of producing (sterile) offspring with either of the parental races (Syd. Soc. Lex. 1883); so dysgenesic |-dʒɪˈnɛsɪk|, a. [F. dysgénésique]; dysgeogenous |-dʒiːˈɒdʒɪnəs|, a. [ad. F. dysgéogène (Thurmann 1849), f. Gr. γῆ, γεω- earth + -gène, taken in sense ‘producing’], not readily decomposing into good soil; the opposite of eugeogenous; dysgraˈmmatical a., pertaining to faults of speech arising from disease; dysˈidrosis (also dyshi-) [Gr. ἱδρώς sweat], a disease of the sweat-glands, in which the sweat is retained and produces swellings; dyskiˈnesia (also dysci-) [Gr. δυσκινησία (Hippoc.)], a class of diseases in which voluntary motion is impeded; dyslalia |dɪˈsleɪlɪə|, dyslaly |ˈdɪsləlɪ| [Gr. λαλία speaking], derangement or impediment in speech, spec. that due to defects in the organs of speech or motor nerves; dysˈlexia [Gr. λέξις ‘speaking’ (here taken in sense ‘reading’), first formed as G. dyslexie (R. Berlin 1883, in Med. Correspondenz-Blatt des Württemberg. ärztl. Landesvereins LIII. 209)], a difficulty in reading due to affection of the brain; spec. = word-blindness (word n. 29); hence dysˈlectic, dysˈlexic adjs. and ns.; dyslogia |-ˈləʊdʒɪə| [Gr. -λογία speaking, speech]: see quot.; hence dysˈlogical a.; dysˈmetria [Gr. µέτρον measure], inability to control the range of movement in a muscular action; dysnomy |ˈdɪsnəmɪ| [Gr. δυσνοµία lawlessness, f. νόµος law], a bad system of law (rare—0); dysˈopia, dysˈopsia, -ˈopsy [Gr. ὤψ (ὠπ-) eye, face, -οψία sight, vision], defect or derangement of vision (Hooper Med. Dict. 1811); dysoˈrexia, -xy [Gr. δυσορεξία (Galen)], defective or depraved appetite; dyspareunia |-pəˈruːnɪə| [Gr. πάρευνος (f. παρά beside + εὐνή bed) lying beside or with + -ia1], difficult or painful sexual intercourse; dysphasia |-ˈfeɪzɪə| [Gr. δύσϕατος hard to utter, -ϕασία speaking], derangement in speech due to confusion or loss of ideas arising from affection of the brain (Syd. Soc. Lex. 1883); hence dysphasic |-ˈfæzɪk|, a.; dysphemia |-ˈfiːmɪə| [Gr. δυσϕηµία ill language], stammering (see quots.); hence dysˈphemic, one who stutters; dysphonia |-ˈfəʊnɪə|, dysphony |ˈdɪsfənɪ|, [Gr. δυσϕωνία ‘harshness of sound’], difficulty of speaking arising from affection of the vocal organs; hence dysphonic |-ˈfɒnɪk|, a., affected with dysphonia; dysˈphotic a. Ecology [Gr. ϕῶς, ϕωτ- light], poorly lighted, used esp. of those depths in oceans, lakes, etc., where some light penetrates but brings about little or no photosynthesis; also erron. disphotic; dysˈpneumony nonce-wd. [Gr. πνεύµων lung], disease or affection of the lungs; dysˈrhythmia, an abnormal or disordered rhythm; spec., an abnormal rhythm in the electrical waves shown in an electroencephalogram; hence dysˈrhythmic a. and n.; dysˈspermatism [Gr. σπερµατισµός emission of semen (LXX.)], impeded emission of semen (Hooper Med. Dict. 1811); dysthesia |-ˈθiːsɪə|, dysthesy |ˈdɪsθɪsɪ| [Gr. δυσθεσία], a bad condition or habit of body; hence dysthetic |-ˈθɛtɪk|, a.; dysthymia |-ˈθaɪmɪə| [Gr. δυσθυµία despondency], despondency or depression; dysˈthymic |-ˈθɪmɪk|, a. [f. Gr. δύσθῡµ-ος desponding + -ic], affected with despondency or depression of spirits; n., a person affected with dysthymia; dystocia |-ˈtəʊsɪə|, dystokia, incorrectly -tochia |-ˈtɒkɪə| [Gr. δυστοκία], difficult or painful childbirth; hence dysˈtocial a.; dystome |ˈdɪstəʊm|, dystomic |dɪˈstɒmɪk|, dystomous |ˈdɪstɒməs|, adjs. Min. [Gr. δύστοµος hard to cut], having imperfect fracture; cleaving with difficulty; dystrophia |-ˈtrɒfɪə|, dystrophy |ˈdɪstrəfɪ| [Gr. -τροϕία nourishment], defective nourishment (Syd. Soc. Lex. 1883); hence dyˈstrophic a., (a) pertaining to or characterized by dystrophy; (b) Ecology [ad. G. dystroph (A. Thienemann Binnengewässer Mitteleuropas (1925) iv. 198, 201)], of a lake: having much dissolved organic matter.1834Southey Corr. w. Caroline Bowles (1881) 318 What I call the *Dysangelical party.1878Ziemssen's Cycl. Med. XIV. 613 The latter [lalopathia] thus includes *dysarthrias (including dyslalias and dysphasias).Ibid. 612 *Dysarthric disturbances of speech.1890Gould New Med. Dict. 138/1 *Dysbasia, difficulty of walking. Proposed instead of abasia, since in the affection there is rarely absolute inability to walk.1962R. N. DeJong in A. B. Baker Clin. Neurol. (ed. 2) I. i. 52 In the hysterical dysbasia there is often marked swaying from side to side.1848Dunglison Dict. Med. Sci. (ed. 7) *Dyschezia.1915R. Knox Radiography i. 233 Dyschezia, in which the passage through the colon is normal, but defaecation is inefficiently performed.1969M. Paulson Gastroenterologic Med. xlv. 1196/1 Rectal constipation (dyschezia, simple constipation, simple retention) may be defined as a failure of the defecation reflex.1889Ch. Q. Rev. 441 Views..formed under the predominating influence of eucholic and *dyscholic expressions of thought prevalent at the time.1890H. Ellis Criminal iii. 117 *Dyschromatopsia has been found common.1886Sat. Rev. 10 Apr. 515 A *dyschromatoptic patient.1902Science 4 July 5/1 Consciousness..can make synchronous impressions dyschronous in their effects, and *dyschronous impressions synchronous.1924Ecology V. 393 A species, genus or family which does not overlap [in blooming time] with any of its relatives, or a group which contains species which do not overlap with their relatives, may be called dyschronous.1753Chambers Cycl. Supp., *Dysepulotica, in medicine, great ulcers beyond cure.1851–60Mayne Expos. Lex., Dysepuloticus.. difficult to be healed..*dysepulotic.1657Tomlinson Renou's Disp. 205 The ulcer is sometimes left *dysepulotical.1878Bartley tr. Topinard's Anthrop. ii. vii. 369 M. Broca has defined the various degrees of sexual affinity..thus:—Abortive, Agenesic, *Dysgenesic, without offspring; Paragenesic, Eugenesic, with offspring.1863J. G. Baker N. Yorksh. 152 The *dysgeogenous hills..a range of calcareous hills which are somewhat lower in altitude.1888F. A. Lees Flora West Yorksh. 65 Dysgeogenous Rocks..are homogeneous in nature, hard or moderately so, very permeable to water, etc.1878Ziemssen's Cycl. Med. XIV. 793 [Faults of speech] which arise from disease and which we designate by the term *dysgrammatical derangements.1876Duhring Dis. Skin 236 *Dysidrosis. Fox has described this disease.1706Phillips (ed. Kersey), *Dyscinesia.1879G. Hewitt in Reynolds Syst. Med. V. 702 Uterine dyskinesia is one of the earliest symptoms of uterine flexion.1883Syd. Soc. Lex., Uterine Dyscinesia. Graily Hewett's term for inability to walk or move, or perform certain of the ordinary motions of the body, without producing pain referable to the uterus.1851–60Mayne Expos. Lex., *Dyslalia.1856Househ. Words Nov. 465 Learnedly speaking, stammering is an idiopathic *dyslaly.1876Ziemssen's Cycl. Med. XIV. 612 It is usual to designate those [lesions of articulation] which depend clearly upon gross mechanical defects in the external apparatuses of speech and their motor nerves as dyslalia in contradistinction to the true or central dysarthrosis.1886–8W. R. Gowers Dis. Nerv. Syst. (1892) I. 297 The cerebral symptom..‘*dyslexia’ a peculiar intermitting difficulty in reading.1888Arch. Ophthalmol. XVII. 307 The term ‘dyslexia’..signifies an inability to read to one's self or aloud for a short time.1957L. E. Travis Handbk. Speech Path. (1959) ii. 54 Dyslexia, partial inability to read characterized by associative learning difficulty; a form of dysphasia.1960New Scientist 15 Sept. 738/2 There might be a special category of reading backwardness which could be delimited and termed ‘specific dyslexia’—though the deplorable name of ‘word blindness’ should be avoided.1964L. Kaiser in D. Abercrombie et al. Daniel Jones 108 Several factors may lead to dyslexia.1961M. Critchley in Trans. Ophthalmological Soc. U.K. LXXXI. 473 Some *dyslexics cannot place in correct serial order days of the week or months of the year.Ibid., Poor muscular co-ordination has often been witnessed in the younger dyslexic children.1964L. Kaiser in D. Abercrombie et al. Daniel Jones 108 The right hand..may be undeveloped in the dyslectic child.1965Sunday Times 10 Oct. 58/4 The most inspiriting contender for the title of the World's Greatest Dyslexic: Hans Christian Andersen.1966Sat. Rev. 16 Apr. 82/1 (heading) Teaching the dyslexic child.1883Syd. Soc. Lex., *Dyslogia, a defect of speech in which the individual words are correctly formed, but are so put together as to express a disturbance of thought.1878Ziemssen's Cycl. Med. XIV. 790 An instance of *dyslogical paragraphia.1911T. L. Stedman Pract. Med. Dict. 257/2 *Dysmetria, a form of dysergia in which the subject is unable to arrest a muscular movement at the desired point or, sometimes, to prevent an involuntary reverse movement.1913G. Holmes in White & Jellife Mod. Treatm. Nerv. & Mental Dis. II. xiv. 630 Cerebellar disease produces a disproportion in the elements of a movement, and there results therefrom what Babinski has termed a dysmetria.1952New Biol. XIII. 55 The dysmetria characteristic of cerebellar disease consists in an incapacity to stop a movement at the intended place, with resulting overswing.1970Nature 19 Sept. 1228/2 Dysmetria will result from the malfunctioning of both cerebellar nuclei and cerebellar cortex.1623Cockeram, *Dysnomie, ill ordering of lawes.1656Blount Glossogr., *Dysopsie, dimness, ill sight.1706Phillips, *Dysorexia, a decay or want of Appetite.1828Webster, Dysorexy, a bad or depraved appetite; a want of appetite. Coxe.1873R. Barnes Clin. Hist. Dis. Women vi. 61 We want a word to express the condition of difficult or painful performance of the sexual function... I have determined to adopt the word ‘*dyspareunia’.1962Lancet 12 May 1011/2 An assortment of pains in various sites, sexual frigidity, dyspareunia, and general nervousness, fears, and depression.1878Ziemssen's Cycl. Med. XIV. 613 Dysarthric and *dysphasic disturbances taken together constituting what are properly considered as true disturbances of speech.1894C. F. Coxwell in Intercolonial Q. Jrnl. Med. & Surg. I. 3 *Dysphemia, or stammering, is regarded by most persons as an annoying trick.1933S. M. Stinchfield Speech Disorders vi. 116 Dysphemia is defined as intermittent and variable nervous disorders of speech accompanying certain psychoneuroses.1940Q. Jrnl. Speech Apr. 203 Dysphemia, speech difficulty, usually related to a psychoneurotic or nervous condition.1957L. E. Travis Handbk. Speech Path. (1959) ii. 55 Dysphemia, a nervous disorder of speech arising from psychological disturbance; includes stuttering.1894C. F. Coxwell in Intercolonial Q. Jrnl. Med. & Surg. I. 3 The *dysphemic can speak, as a rule, tolerably well in private.1706Phillips, *Dysphonia, a Difficulty of Speech, occasion'd by an ill-Disposition of the Organs.1866A. Flint Princ. Med. (1880) 309 There is dysphonia, but not complete loss of voice.1872Cohen Dis. Throat 164 At other times the patient wakes up in the morning aphonic or *dysphonic.1903W. R. Fisher tr. Schimper's Plant Geogr. iii. v. iii. 811 The flora of the *dysphotic region is composed almost exclusively of microphytes.1958P. Lake Physical Geogr. (ed. 4) xviii. 424 The water column can..be divided into..the disphotic zone with insufficient light for photosynthesis.1970B. H. McConnaughey Introd. Marine Biol. i. 17 Below the euphotic zone are the dysphotic, or mesopelagic, depths extending down to about 1000 metres.1839Sterling Let. 30 June in Carlyle Life iii. i, Rather I think from dyspepsia than *dyspneumony.1909Cent. Dict. Suppl., *Dysrhythmia.1939Jrnl. Amer. Med. Assoc. CXIII. 1002/2 [Electro-encephalographic] records were made..of twenty-six patients who had cerebral dysrhythmia.1962Listener 7 June 994/2 In all susceptible patients bursts of abnormal electric activity of the brain (so-called dysrhythmia) could be induced by flicker from the stroboscope.1965W. R. Brain Speech Disorders (ed. 2) xiii. 150 The dysrhythmias [of speech] include cluttering and stuttering.1969W. Cleland et al. Med. & Surg. Cardiol. ii. 43 Absence of the P wave may be due to sinoatrial block or atrial dysrhythmia.1941W. G. Lennox Science & Seizures (ed. 3) xi. 90 These ‘asymptomatic *dysrhythmic’ individuals form a reservoir from which persons with seizures are drawn.1944Proc. R. Soc. Med. XXXVII. 319 Comparison between dysrhythmics in whom fits occur and those in whom they do not occur may be artificial.1965W. R. Brain Speech Disorders (ed. 2) xiii. 150 Truncated dysrhythmic and incoherent utterance.1822–34Good Study Med. (ed. 4) II. 605 Followed by secondary symptoms or a syphilitic *dysthesy.Ibid. I. 282 Persons of weakly and inelastic fibres, and *dysthetic habits.1844Dunglison Med. Dict. 254/2 *Dysthymia, depression, despondency.1944H. J. Eysenck in Jrnl. Mental Sci. XC. 855 The term ‘affective disorder’ or ‘dysthymia’ is suggested for the anxiety-depression-obsessional group.1847Craig, *Dysthymic, desponding; depressed in mind.1864Webster, Dysthymic, affected with despondency; depressed in spirits; dejected.1947Brit. Jrnl. Psychol. May 135 Twenty-five female dysthymics.1961New Scientist 26 Oct. 225 An anxious neurotic patient, or dysthymic.1706Phillips, *Dystocia, a Difficulty of bringing forth.1811Hooper Med. Dict., Dystochia.1828M. Ryan Man. Midwifery 308 In consequence of difficult, tedious and *dystocial labors.1847Craig, *Dystomic, in Mineralogy, having an imperfect fracture or cleavage.1864Webster, Dystome, Dystomic, Dystomous.1893S. D'Odiardi Med. Electr. 54 The agents of demolition or elimination, called *dystrophics or denutrients.1893Brit. Med. Jrnl. 4 Nov. 998 The dystrophic view of sclerosis.1931R. N. Chapman Animal Ecology xvi. 305 The *dystrophic lake, or brown-water lake, is found among peat bogs.1959J. Clegg Freshwater Life Brit. Isles (ed. 2) ii. 38 The so-called Dystrophic lake..which is generally understood to be a lake with a bottom composed of peaty humus and very soft, acid water.1967G. E. Hutchinson Treat. Limnol. II. xxii. 380 The water color involved in the separation of Thienemann's dystrophic type is ordinarily regarded as due to extractives from bog soils and peat.1886W. R. Gowers Dis. Nerv. Syst. I. 386 Idiopathic Muscular Atrophy..Muscular *Dystrophy. Add: dystrophia myotonica Path. [coined in Ger. (H. Curschmann 1915, in Deut. Zeitschr. f. Nervenheilkunde LIII. 126)] = myotonia atrophica s.v. myotonia n. 2 b.1923Brain XLVI. 125 *Dystrophia myotonica is a disease sui generis within the group of heredo-familial degenerative disorders.1963,1974[see myotonia atrophica s.v. myotonia n. 2 b].1989Collier & Longmore Oxf. Handbk. Clin. Specialties (ed. 2) vi. 504 Dot opacities are common in normal lenses but are also found in fast-developing cataracts in diabetes and dystrophia myotonica.
dys-
word-forming element meaning "bad, ill, abnormal," from Greek dys-, inseparable prefix "destroying the good sense of a word or increasing its bad sense" [Liddell & Scott], "bad, hard, unlucky," from PIE root (and prefix) *dus- "bad, ill, evil" (cognates: Sanskrit dus-, Old Persian duš- "ill," Old English to-, Old High German zur-, Gothic tuz- "un-"), a derivative of the root *deu- (1) "to lack, be wanting" (source of Greek dein "to lack, want").
Very productive in ancient Greek, where it could attach even to proper names (such as dysparis "unhappy Paris"); its entries take up nine columns in Liddell and Scott. Among the words formed from it were some English might covet: dysouristos "fatally favorable, driven by a too-favorable wind;" dysadelphos "unhappy in one's brothers;" dysagres "unlucky in fishing;" dysantiblepos "hard to look in the face."
dys-

bad, abnormal, difficult, impaired, unfavorable:
dysfunctional, dyslexia, dyspathy
dys- /dɪs/ prefix.
ORIGIN: Greek dus-, cogn. with Sanskrit dus-, Old High German zūr- (German zer-), Old Norse tor-, Old English to-2.
Forming nouns and adjectives with the sense ‘bad, difficult, unfavourable, abnormal, impaired’ (opp. eu-). In Medicine, often with counterparts of related meaning in a-10.
 DERIVATIVE dyˈsarthria noun difficult or unclear articulation of (otherwise normal) speech L19.
dyscalˈculia noun severe difficulty in calculation, as a result of cerebral disorder M20.
dyschezia /dɪsˈki:zɪə/ noun [Greek khezein defecate] difficult or painful defecation M19.
dyskiˈnesia noun an abnormality or impairment of voluntary movement E18.
dysˈlalia noun a speech disorder, esp. one in which a person uses words or sounds peculiar to himself or herself M19.
dysˈphonia noun difficulty in speaking due to a disorder of the throat, mouth, or vocal organs E18.
dysˈphotic adjective (of ocean depths etc.) receiving insufficient light to bring about photosynthesis E20.
dysˈprosody noun abnormality of speech inflection, stress, and rhythm, occurring in aphasia M20.
dysˈrhythmia noun an abnormality of physiological rhythm, esp. in the electrical activity of the brain E20.
dysˈrhythmic adjective of or pertaining to dysrhythmia M20.
dysteleoˈlogical adjective of, pertaining to, or marked by dysteleology M19.
dysteleˈology noun the denial of final causes or purpose in natural phenomena (opp. teleology); biological study conforming to this viewpoint: M19.
dysˈthymia noun [Greek dusthumia] Psychiatry depression, despondency M19.
dysˈthymic adjective (Psychiatry) of, pertaining to, or suffering from dysthymia M20.
dys-
prefix. bad, abnormal, or defective, as in dysfunction, dystrophy.
[< Greek dys-]
dys-
prefix
Etymology: alteration (influenced by Latin & Greek dys-) of Middle English dis-, from Middle French & Latin; Middle French dis-, from Latin dys-, from Greek; akin to Old English tō-, te- apart, to pieces, Old High German zi-, zir- apart, to pieces, Old Norse tor- difficult, Gothic tuz- (in tuzwerjan to doubt), Sanskrit dus- difficult, bad
1.
 a. : abnormal : diseased
  < dyshidrosis >
  < dysplasia >
 b. : difficult
  < dysmenorrhea >
  < dysuria >
  : with difficulty
  < dysoxidize >
  : poorly
  < dyscrystalline >
  — sometimes opposed to eu-
 c. : faulty : impaired
  < dysfunction >
  < dyspepsia >
 d. : bad : unfavorable
  < dyspathy >
  < dysphemism >
  — sometimes opposed to eu-
2. : absence or reverse of
 < dysteleology >

dys-

Prefix

  1. bad

Etymology

From New Latin, from Ancient Greek δυσ- (dus-, “hard, difficult, bad”).

Antonyms

  • eu-

    • Derived terms

    English words prefixed with dys-


    See also

  • dis-

    • 前缀：dys- 表示"坏, 不良"

    dyspepsia 消化不良（dys+peps消化；胃＋ia病→消化不好）

    dystrophy 营养不良（dys+trophy营养）

    前缀：dys- 不良、恶、困难

    dysfunction 机能失调

    dysphonia 发音困难

    dyspepsia 消化不良

    dyspathy 反感

    dysgenesis 生殖力不良

    dysopsy 视力弱，弱视

    前缀：dys-

    【词根含义】：困难,病

    【词根来源】：来源于拉丁语前缀dys-

    词根词缀：dys-

    【来源及含义】Greek: bad, harsh, wrong; ill; hard to do, difficult at; slow of; disordered; impaired, defective

    【相关词根词缀】Inter-related cross references, directly or indirectly, involving word units meaning "bad, wrong": caco-, kako-; mal-; mis-; pessim-; sceler-. Cross references directly, or indirectly, involving "slow, slowness, slow of, sluggish": lent-; tard-.

    【同源单词】acrodysaesthesia, acrodysostosis, algesidystrophy, algodystrophy, amebic dysentery, amylodyspepsia
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