knockout的词源

英文词源

knockout (n.)

also knock-out, in fighting, 1887, from verbal phrase knock out "to stun by a blow for a 10-count" in boxing, short for to knock out of time; see knock (v.) + out. Slang meaning "attractive person" is from 1892. To knock oneself out "make a great effort" is from 1936.

中文词源

knockout：击倒

比喻用法。

该词的英语词源请访问趣词词源英文版：knockout 词源，knockout 含义。