英语词源字典 - 在线词源网站

unchain (v.)[unchain 词源字典]: 1580s, from un- (2) "opposite of" + chain (v.). Figurative sense of "to liberate" is recorded from 1793. Related: Unchained; unchaining.[unchain etymology, unchain origin, 英语词源]
unchallenged (adj.): 1630s, from un- (1) "not" + past participle of challenge (v.).
unchangeable (adj.): mid-14c., from un- (1) + changeable.
unchanged (adj.): late 14c., from un- (1) "not" + past participle of change (v.).
unchanging (adj.): 1590s, from un- (1) "not" + present participle of change (v.).
uncharacteristic (adj.): 1753, from un- (1) "not" + characteristic (adj.). Related: Uncharacteristically.
uncharitable (adj.): mid-15c., from un- (1) "not" + charitable (v.). Related: Uncharitably (late 14c.).
uncharted (adj.): 1804, from un- (1) "not" + past participle of chart (v.).
unchartered (adj.): 1805, from un- (1) "not" + past participle of charter (v.).
unchaste (adj.): late 14c., from un- (1) "not" + chaste.
unchecked (adj.): late 15c., from un- (1) "not" + past participle of check (v.1).
unchivalrous (adj.): 1814, from un- (1) "not" + chivalrous. Related: Unchivalrously; unchivalric.
unchristian (adj.): 1550s, "not professing Christianity" (of persons), from un- (1) "not" + Christian (adj.). Meaning "at variance with Christian principles" (of actions) is recorded from 1580s.
unchurched (adj.): 1680s, from un- (1) "not" + churched "committed or belonging to a church" (see church (v.)). A verb, unchurch "to remove or exclude (someone) from membership in a church" is recorded from 1610s.
uncial (adj.): 1640s, "pertaining to an ounce," from Latin uncialis "of an inch, of an ounce," from uncia "a twelfth part" (see inch (n.1)). In reference to letters, it is attested from 1712, from Late Latin litterae unciales (Jerome), probably meaning "letters an inch high," from Latin uncialis "of an inch, inch-high." As a noun, "an uncial letter," from 1775.
uncirculated (adj.): 1749, from un- (1) "not" + past participle of circulate (v.).
uncircumcised (adj.): late 14c., from un- (1) "not" + past participle of circumcise (v.).
uncivil (adj.): 1550s, "barbarous," from un- (1) "not" + civil (adj.). Meaning "impolite" is 1590s.
uncivilized (adj.): c. 1600, "barbarous," from un- (1) "not" + past participle of civilize (v.). Uncivil in the same sense is recorded from 1550s.
unclasp (v.): 1520s, from un- (2) "reverse, opposite of" + clasp (v.). Related: Unclasped; unclasping.