- indeclinable (adj.)
[indeclinable 词源字典]
- late 14c., originally in grammar, from French indéclinable, from Latin indeclinabilis, from indeclinatus "unchanged, constant," from in- "not, opposite of" (see in- (1)) + declinatus, from declinare (see decline (v.)). Related: Indeclinably.[indeclinable etymology, indeclinable origin, 英语词源]