"having the qualities of a dog" (mostly in a negative sense, "mean, surly, contemptible"), c. 1300, from dog (n.). Meaning "persistent, silently obstinate" is from 1779. Hence doggedly (late 14c.), "cruelly, maliciously;" later "with a dog's persistence" (1773). Related: Doggedness.
early 15c., negacioun, "an act of denial," from Old French negacion (12c.) and directly from Latin negationem (nominative negatio) "denial," noun of action from past-participle stem of negare "deny, say no," from PIE root *ne- "not." As "a negative assertion," mid-15c.
"a short chirp, the cry of a mouse or young chick or other small bird," mid-15c., from peep (v.2); meaning "slightest sound or utterance" (usually in a negative context) is attested by 1903. Meaning "young chicken" is from 1680s. The marshmallow peeps confection are said to date from the 1950s.
"not to be spoken of, abominable, very shocking to the general sense of justice or religion," 1630s, from Latin nefandus "unmentionable, impious, heinous," from ne-, negative particle (see un- (1)), + fandus "to be spoken," gerundive of fari "to speak," from PIE root *bha- (2) "to speak, tell, say."
[Young's book] imagined an elite that got its position not from ancestry, but from test scores and effort. For him, meritocracy was a negative term; his spoof was a warning about the negative consequences of assigning social status based on formal educational qualifications, and showed how excluding from leadership anyone who couldn't jump through the educational hoops would create a new form of discrimination. And that's exactly what has happened. [Lani Guinier, interview, New York Times, Feb. 7, 2015]
"expressing denial or negation," 1570s, from French negatoire or directly from Medieval Latin negatorius "negative," from Latin negatus, past participle of negare "deny, say no, to refuse" (from PIE root *ne- "not"). In the sense "no" it is U.S. Air Force slang from the early 1950s.
1570s, from un- (1) "not" + kempt "well-combed, neat," from variant past participle of Middle English kemben "to comb," from Old English cemban "to comb," from Proto-Germanic *kambijan, from *kamb- "comb" (from PIE root *gembh- "tooth, nail." ). Form unkembed is recorded from late 14c. The verb kemb is rare after 1400s, but its negative past participle form endures.
word formed from misdivision of another as a nother (see N for other examples), c. 1300. From 14c.-16c. no nother is sometimes encountered as a misdivision of none other or perhaps as an emphatic negative; Old English had noðer as a contraction of ne oðer "no other." Hence Middle English nother-gates (adv.) "not otherwise" (c. 1300).