- unsteady (v.)
[unsteady 词源字典] - "make unsteady," 1530s, from un- (2) "reverse, opposite of" + steady (v.). Related: Unsteadied; unsteadying.
[unsteady etymology, unsteady origin, 英语词源]
- unstick (v.)
- 1706, from un- (2) "reverse, opposite of" + stick (v.). Related: Unsticking.
- unstinted (adj.)
- late 15c., from un- (1) "not" + past participle of stint (v.).
- unstinting (adj.)
- late 14c., "unceasing," from un- (1) "not" + present participle of stint (v.). Meaning "lavish" attested by 1834.
- unstop (v.)
- "remove the stopper from," late 14c., from un- (2) "reverse, opposite of" + stop (v.). Related: Unstopped; unstopping.
- unstoppable (adj.)
- 1827; see un- (1) "not" + stop (v.) + -able.
- unstressed (adj.)
- 1879, from un- (1) "not" + past participle of stress (v.).
- unstring (v.)
- 1610s, from un- (2) "reverse, opposite of" + string (v.). Related: Unstringing.
- unstrung (adj.)
- 1590s, "with strings relaxed" (of a harp, etc.), from un- (1) "not" + past participle of string (v.). Transferred sense of "weakened, unnerved" is recorded from 1690s.
- unstuck (adj.)
- 1840, "unpierced;" 1860, "unglued," from un- (1) "not" + past participle of stick (v.).
- unstudied (adj.)
- late 14c., "not made a subject of study," from un- (1) "not" + past participle of study (v.). From 1650s as "natural, not artificial."
- unsubscribe (v.)
- 1570s (implied in unsubscribed), from un- (2) "reverse of" + subscribe (v.). Related: unsubscribing.
- unsubsidized (adj.)
- 1756, from un- (1) "not" + past participle of subsidize (v.).
- unsubstantial (adj.)
- mid-15c., from un- (1) "not" + substantial (adj.).
- unsubstantiated (adj.)
- 1775, from un- (1) "not" + past participle of substantiate (v.).
- unsuccessful (adj.)
- 1610s, from un- (1) "not" + successful (adj.). Related: Unsuccessfully. A noun unsuccess "lack of success" is recorded from 1580s.
- unsuitable (adj.)
- 1590s, from un- (1) "not" + suitable (adj.). Related: Unsuitably; unsuitability.
- unsuited (adj.)
- "unfit," 1590s, from un- (1) "not" + past participle of suit (v.).
- unsullied (adj.)
- 1580s, from un- (1) "not" + past participle of sully (v.).
- unsung (adj.)
- early 15c., "not uttered in a song," from un- (1) "not" + past participle of sing (v.). Similar formation in German ungesungen. Meaning "not celebrated" is recorded from 1660s.
