| 词汇 | sleep |
| 词根词缀 | 词源： 1. sleep (v.) O.E. slæpan "to sleep" (class VII strong verb; past tense slep, pp. slæpen), from W.Gmc. *slæpanan (cf. O.S. slapan, O.Fris. slepa, M.Du. slapen, Du. slapen, O.H.G. slafen, Ger. schlafen, Goth. slepan "to sleep"), from PIE base *sleb- "to be weak, sleep" (cf. O.C.S. slabu, Lith. silpnas "weak"), which is perhaps connected to the root of slack (adj.). Sleep with "do the sex act with" is in O.E. "Gif hwa fæmnan beswice unbeweddode, and hire mid slæpe ..." [Laws of King Alfred, c.900] Sleep around first attested 1928. Sleeping sickness as a specific African tropical disease is first recorded 1875. Sleepless is from early 15c.; sleepy first attested early 13c. 2. sleep (n.) O.E. slæp from the root of sleep (v.) (cf. cognate O.S. slap, O.Fris. slep, M.Du. slæp, Du. slaap, O.H.G. slaf, Ger. Schlaf, Goth. sleps). Personified as L. Somnus, Gk. Hypnos (see somnolence). Fig. use for "repose of death" was in O.E.; to put (an animal) to sleep "kill painlessly" is recorded from 1942. Sleep-walker "somnambulist" is attested from 1747. To be able to do something in (one's) sleep "easily" is recorded from 1953. 词根记忆： v. (slept,slept)睡n.睡眠Step by step, the sleepy creeper crawled into my sleeve to sleep.昏昏欲睡的爬虫一步一步爬进我的袖子里睡觉. |
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