Alibi
来自Big Physics
late 17th century (as an adverb in the sense ‘elsewhere’): from Latin, ‘elsewhere’. The noun use dates from the late 18th century.
wiktionary
Borrowed from Latin alibī(“elsewhere, at another place”, adverb).
etymonline
alibi (n.)
1743, "a plea of having been elsewhere when an action took place," from Latin alibi (adv.) "elsewhere, somewhere else," locative of alius "another, other, different," from PIE root *al- (1) "beyond." The weakened sense of "excuse" is attested since 1912, but technically any proof of innocence that doesn't involve being "elsewhere" is an excuse (n.) and not an alibi.
