- loser (n.)
[loser 词源字典]
- mid-14c., "a destroyer," agent noun from lose (v.). Sense of "one who suffers loss" is from 1540s; meaning "horse that loses a race" is from 1902; "convicted criminal" is from 1912; "hapless person" is 1955 student slang.[loser etymology, loser origin, 英语词源]