英语词汇filtrate的起源、历史背景-英语词源词典

词汇	filtrate
词源	filtrate v. 1610s, probably a back-formation from filtration or else from Medieval Latin filtratus, from filtrum "felt" (see filter (n.)). Related: Filtrated; filtrating. As a noun, "liquid which has passed through a filter," by 1840. Entries linking to filtrate filtration n. "act or process of filtering," c. 1600, perhaps from French filtration (1570s), noun of action from filter "to filter" (see filter (v.)). filter n. early 15c., "piece of felt through which liquid is strained," from Old French feutre "felt, felt hat, carpet" (Modern French filtre) and directly from Medieval Latin filtrum "felt" (used to strain impurities from liquid), from West Germanic filtiz (from PIE root pel- (5) "to thrust, strike, drive"). Figurative use from c. 1600. As a pad of absorbent material attached to a cigarette, from 1908. filtration (n.)filter (n.)infiltrate (v.)*pel- (5) updated on August 27, 2022
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filtrate v.