- extraction (n.)
[extraction 词源字典]
- early 15c., "process of withdrawing or obtaining" (something, from something else), from Old French estraction "extraction, origin" (12c.) or directly from Medieval Latin extractionem (nominative extractio), noun of action from past participle stem of Latin extrahere "to draw out" (see extract (v.)). Meaning "that which is extracted" is from 1590s. Meaning "descent, lineage" is from late 15c.[extraction etymology, extraction origin, 英语词源]