clearance的词源

英文词源

clearance (n.)

1560s, "action of clearing," from clear (v.) + -ance. Meaning "a clear space" is from 1788. Meaning "approval, permission" (especially to land or take off an aircraft) is from 1944, American English; national security sense recorded from 1948. Clearance sale attested by 1843.

中文词源

clearance：许可，兑现

来自clear,清楚的，解决了的。

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