diagnosis
n.
1680s, medical Latin application of Greek diagnosis "a discerning, distinguishing," from stem of diagignoskein "discern, distinguish," literally "to know thoroughly," from dia- "apart" (see dia-) + gignoskein "to learn" (see gnostic).
〔李〕[dia-=through 通过；gnosis=inquiry 查询⇒“a decision through inquiry 通过查询做出的决定”→] n. the discovery of the nature of disease by examining the symptoms 诊断