- unhappy (adj.)
[unhappy 词源字典]
- c. 1300, "causing misfortune or trouble (to oneself or others)," from un- (1) "not" + happy. Meaning "unfortunate, unlucky" is recorded from late 14c.; sense of "miserable, wretched" is recorded from late 14c. (originally via misfortune or mishap).[unhappy etymology, unhappy origin, 英语词源]