nifty (adj.) Look up nifty at Dictionary.com
"smart, stylish," 1868, of unknown origin, perhaps theatrical slang, first attested in a poem by Bret Harte, who said it was a shortened, altered form of magnificat. Related: Niftily; niftiness.
nig (n.) Look up nig at Dictionary.com
c.1300, "niggardly person" (see niggard). As an abbreviated form of nigger, attested by c.1832, American English.
nig-nog (n.) Look up nig-nog at Dictionary.com
"foolish person," 1953, OED suggests from earlier cant slang nigmenog "a very silly fellow" (1700). As a term of abuse for a black person, a shortened and reduplicated form of nigger.
Nigel Look up Nigel at Dictionary.com
masc. proper name; see Neil.
Niger Look up Niger at Dictionary.com
African nation, named for the river Niger, mentioned by that name 1520s (Leo Africanus), probably an alteration (by influence of Latin niger "black") of a local Tuareg name, egereou n-igereouen, from egereou "big river, sea" + n-igereouen, plural of that word. Translated in Arabic as nahr al-anhur "river of rivers."
Nigeria Look up Nigeria at Dictionary.com
African nation, named for river Niger, which runs through it, + -ia. Related: Nigerian.
nigga (n.) Look up nigga at Dictionary.com
1925, also niggah, representing southern U.S. pronunciation of nigger (q.v.).
niggard (n.) Look up niggard at Dictionary.com
"mean person, miser," late 14c., nygart, of uncertain origin. The suffix suggests French origin (see -ard), but the root word is possibly from earlier nig "stingy" (c.1300), perhaps from a Scandinavian source related to Old Norse hnøggr "stingy," from Proto-Germanic *khnauwjaz (source of Swedish njugg "close, careful," German genau "precise, exact"), and to Old English hneaw "stingy, niggardly," which did not survive in Middle English.
niggardly (adj.) Look up niggardly at Dictionary.com
1560s, from niggard + -ly (1).
It was while giving a speech in Washington, to a very international audience, about the British theft of the Elgin marbles from the Parthenon. I described the attitude of the current British authorities as "niggardly." Nobody said anything, but I privately resolved -- having felt the word hanging in the air a bit -- to say "parsimonious" from then on. [Christopher Hitchens, "The Pernicious Effects of Banning Words," Slate.com, Dec. 4, 2006]
As an adverb from 1520s. Related: Niggardliness.
nigger (n.) Look up nigger at Dictionary.com
1786, earlier neger (1568, Scottish and northern England dialect), from French nègre, from Spanish negro (see Negro). From the earliest usage it was "the term that carries with it all the obloquy and contempt and rejection which whites have inflicted on blacks" [cited in Gowers, 1965, probably Harold R. Isaacs]. But as black inferiority was at one time a near universal assumption in English-speaking lands, the word in some cases could be used without deliberate insult. More sympathetic writers late 18c. and early 19c. seem to have used black (n.) and, after the American Civil War, colored person.
"You're a fool nigger, and the worst day's work Pa ever did was to buy you," said Scarlett slowly. ... There, she thought, I've said "nigger" and Mother wouldn't like that at all. [Margaret Mitchell, "Gone With the Wind," 1936]
Also applied by English settlers to dark-skinned native peoples in India, Australia, Polynesia. The reclamation of the word as a neutral or positive term in black culture (not universally regarded as a worthwhile enterprise), often with a suggestion of "soul" or "style," is attested first in the U.S. South, later (1968) in the Northern, urban-based Black Power movement.

Used in combinations (such as nigger-brown) since 1840s for various dark brown or black hues or objects; euphemistic substitutions (such as Zulu) began to appear in these senses c.1917. Brazil nuts were called nigger toes by 1896. Variant niggah, attested from 1925 (without the -h, from 1969), is found usually in situations where blacks use the word. Nigra (1944), on the other hand, in certain uses reflects a pronunciation of negro meant to suggest nigger, and is thus deemed (according to a 1960 slang dictionary) "even more derog[atory] than 'nigger.' " Slang phrase nigger in the woodpile attested by 1800; "A mode of accounting for the disappearance of fuel; an unsolved mystery" [R.H. Thornton, "American Glossary," 1912]. Nigger heaven "the top gallery in a (segregated) theater" first attested 1878 in reference to Troy, N.Y.
niggerhead (n.) Look up niggerhead at Dictionary.com
from nigger + head. A term used formerly in U.S. of various things, such as "cheap tobacco" (1843), "protruding root mass in a swamp" (1859), a type of cactus (1877), and the black-eyed susan (1893). Variant negro-head attested from 1781.
niggle (v.) Look up niggle at Dictionary.com
1590s (implied in niggling), possibly from a Scandinavian source (compare Norwegian dialectal nigla "be busy with trifles"), perhaps related to source of niggard. Related: Niggled; niggling; niggler.
nigh (adv.) Look up nigh at Dictionary.com
"near," Old English neah (West Saxon), neh (Anglian), common Germanic (cognates: Old Saxon nah, Old Frisian nei, Middle Dutch, Dutch na, Old High German nah, German nah, Gothic nehwa), with no cognates outside Germanic. The Old English progression was neah - near - niehsta, for "nigh - near - next." But the comparative near and the superlative nehst (see next) gradually evolved into separate words not felt as related to nigh. New comparative and superlative forms nigher, nighest developed 14c. as phonetic changes obscured the original relationships. As an adjective from Middle English.
night (n.) Look up night at Dictionary.com
Old English niht (West Saxon neaht, Anglian næht, neht) "night, darkness;" the vowel indicating that the modern word derives from oblique cases (genitive nihte, dative niht), from Proto-Germanic *nakht- (cognates: Old Saxon and Old High German naht, Old Frisian and Dutch nacht, German Nacht, Old Norse natt, Gothic nahts).

The Germanic words are from PIE *nekwt- "night" (cognates: Greek nuks "a night," Latin nox, Old Irish nochd, Sanskrit naktam "at night," Lithuanian naktis "night," Old Church Slavonic nosti, Russian noch', Welsh henoid "tonight"), according to Watkins, probably from a verbal root *neg- "to be dark, be night." For spelling with -gh- see fight.
The fact that the Aryans have a common name for night, but not for day (q.v.), is due to the fact that they reckoned by nights. [Weekley]
Compare German Weihnachten "Christmas." In early times, the day was held to begin at sunset, so Old English monanniht "Monday night" was the night before Monday, or what we would call Sunday night.

To work nights preserves the Old English genitive of time. Night shift is attested from 1710 in the sense of "garment worn by a woman at night" (see shift (n.1)); meaning "gang of workers employed after dark" is from 1839. Night soil "excrement" (1770) is so called because it was removed (from cesspools, etc.) after dark. Night train attested from 1838. Night life "habitual nocturnal carousing" attested from 1852.
night-hawk (n.) Look up night-hawk at Dictionary.com
from 1610s in reference to various birds, from night + hawk (n.). Figurative sense of "one who stays up and is active at night" is from 1818.
night-light (n.) Look up night-light at Dictionary.com
1640s, "faint light visible in the sky at night," from night + light (n.). As "small light used in rooms at night to keep them from total darkness" from 1851.
night-night Look up night-night at Dictionary.com
nursery talk, "good-night," 1896; form nighty-night is attested from 1876.
night-owl (n.) Look up night-owl at Dictionary.com
"owl which flies at night," 1590s; applied since 1846 (American English) to persons who are up or out late at night. Compare night-hawk, also French hirondelle de nuit "prostitute," literally "night-swallow."
night-watch (n.) Look up night-watch at Dictionary.com
"guard kept during the night," late Old English; see night + watch (n.).
night-work (n.) Look up night-work at Dictionary.com
1590s, from night + work (n.). Old English had nihtweorc.
nightcap (n.) Look up nightcap at Dictionary.com
also night-cap, late 14c., "covering for the head, worn in bed," from night + cap (n.). In the alcoholic sense, it is attested from 1818. American English sense of "final event in a sporting contest" (especially the second game of a baseball double-header) is from 1939.
nightclub (n.) Look up nightclub at Dictionary.com
also night-club, "club open at night," 1894, from night + club (n.) in the social sense.
nightfall (n.) Look up nightfall at Dictionary.com
1700; see night + fall (n.).
nightgown (n.) Look up nightgown at Dictionary.com
also night-gown, c.1400, from night + gown.
nightie (n.) Look up nightie at Dictionary.com
1871, short for nightgown; originally a children's word.
nightingale (n.) Look up nightingale at Dictionary.com
Old English næctigalæ, nihtegale, compound formed in Proto-Germanic (cognates: Dutch nachtegaal, German Nachtigall) from *nakht- "night" (see night) + *galon "to sing," related to Old English giellan "yell" (see yell). With parasitic -n- that appeared mid-13c. Dutch nightingale "frog" is attested from 1769. In Japanese, "nightingale floor" is said to be the term for boards that creak when you walk on them.

French rossignol (Old French lousseignol) is, with Spanish ruiseñor, Portuguese rouxinol, Italian rosignuolo, from Vulgar Latin *rosciniola, dissimilated from Latin lusciniola "nightingale," diminutive of luscinia "nightingale."
nightjar (n.) Look up nightjar at Dictionary.com
nocturnal bird, goatsucker, 1620s, from night + jar (v.). So called for the "jarring" sounds made by the male when the female is brooding, which have been described as a "churring trill that seems to change direction as it rises and falls." An Old English word for it was nihthræfn "night raven."
nightlong (adj.) Look up nightlong at Dictionary.com
Old English nihtlang; see night + -long.
nightly (adj.) Look up nightly at Dictionary.com
Old English nihtlic "nocturnal, of the night, at night;" see night + -ly (1). As an adverb, Middle English nihtlich, from the adjective.
nightmare (n.) Look up nightmare at Dictionary.com
late 13c., "an evil female spirit afflicting sleepers with a feeling of suffocation," compounded from night + mare (3) "goblin that causes nightmares, incubus." Meaning shifted mid-16c. from the incubus to the suffocating sensation it causes. Sense of "any bad dream" first recorded 1829; that of "very distressing experience" is from 1831. Cognate with Middle Dutch nachtmare, German Nachtmahr.
nightmarish (adj.) Look up nightmarish at Dictionary.com
1834, from nightmare + -ish. Related: Nightmarishly; nightmarishness.
nightshade (n.) Look up nightshade at Dictionary.com
Old English nihtscada, literally "shade of night," perhaps in allusion to the poisonous berries. A common Germanic compound, cognates: Dutch nachtschade, German Nachtschatten.
nightspot (n.) Look up nightspot at Dictionary.com
also night spot, "nightclub," 1936, from night (n.) + spot (n.) "place."
nightstick (n.) Look up nightstick at Dictionary.com
also night-stick, 1887, from night + stick (n.). So called because it was carried on night patrols.
nighttime (n.) Look up nighttime at Dictionary.com
also night-time, c.1400, from night + time (n.).
nigra Look up nigra at Dictionary.com
see nigger.
nihil (n.) Look up nihil at Dictionary.com
Latin, literally "nothing" (see nil). Phrase nihil obstat "nothing stands in the way" printed on first pages of a Catholic work indicates its official approval.
nihilism (n.) Look up nihilism at Dictionary.com
1817, "the doctrine of negation" (in reference to religion or morals), from German Nihilismus, from Latin nihil "nothing at all" (see nil), coined by German philosopher Friedrich Heinrich Jacobi (1743-1819). In philosophy, an extreme form of skepticism (1836). The political sense was first used by German journalist Joseph von Görres (1776-1848). Turgenev used the Russian form of the word (nigilizm) in "Fathers and Children" (1862) and claimed to have invented it. With a capital N-, it refers to the Russian revolutionary anarchism of the period 1860-1917, supposedly so called because "nothing" that then existed found favor in their eyes.
nihilist (n.) Look up nihilist at Dictionary.com
1836 in the religious or philosophical sense, from French nihiliste, from Latin nihil (see nihilism). In the Russian political sense, it is recorded from 1871. Related: Nihilistic.
nihility (n.) Look up nihility at Dictionary.com
1670s, from Medieval Latin nihilitas, from nihil "nothing at all" (see nil).
Nike Look up Nike at Dictionary.com
Greek goddess of victory (identified by the Romans with their Victoria), literally "victory," probably connected with neikos "quarrel, strife," neikein "to quarrel with." As a type of U.S. defensive surface-to-air missiles, attested from 1952.
nil (n.) Look up nil at Dictionary.com
"nothing," 1833, from Latin nil, contraction of nihil, nihilum "nothing, not at all; in vain," from ne- "not" (see un-) + hilum "small thing, trifle," of unknown origin.
Nile Look up Nile at Dictionary.com
one of the world's oldest surviving place names, from a Semitic root nahal "river." Unnamed in Old Testament, it is always merely "the river" (Hebrew yeor).
nill (v.) Look up nill at Dictionary.com
Old English nylle, nelle "to be unwilling," from ne "no" (see no) + will (v.). Often paired with will; the construction in nill he, will he, once common, attested from c.1300, surviving principally in willy-nilly, which, however, reverses the usual Middle English word order. Latin expressed a similar idea in nolens volens.
Nilo- Look up Nilo- at Dictionary.com
used as a comb. form of Nile.
nim (v.) Look up nim at Dictionary.com
"to take, to steal" (archaic), Old English niman "to take, accept, receive, grasp, catch" (cognates: Old Frisian nima, Middle Dutch nemen, German nehmen, Gothic niman; see nimble). The native word, replaced by Scandinavian-derived take (v.) and out of use from c.1500 except in slang sense of "to steal," which endured into 19c.
nimble (adj.) Look up nimble at Dictionary.com
"agile, light-footed," c.1300, nemel, from Old English næmel "quick to grasp" (attested but once), related to niman "to take," from Proto-Germanic *neman (cognates: Old Saxon, Old Dutch, Gothic niman, Old Norse nema, Old Frisian nima, German nehmen "to take"), from PIE root *nem- "to divide, distribute, allot," also "to take" (cognates: Greek nemein "to deal out," nemesis "just indignation," Latin numerus "number," Lithuanian nuoma "rent, interest," Middle Irish nos "custom, usage"). With excrescent -b- from c.1500 (compare limb (n.1)). Related: Nimbleness. In 17c., English had nimblechaps "talkative fellow."
nimbly (adv.) Look up nimbly at Dictionary.com
mid-14c., from nimble + -ly (adv.).
nimbostratus (n.) Look up nimbostratus at Dictionary.com
1932 (earlier use from late 19c. refers to different cloud types), from Modern Latin nimbus (see nimbus) + connecting element -o- + stratus (see stratus).
nimbus (n.) Look up nimbus at Dictionary.com
1610s, "bright cloud surrounding a god," from Latin nimbus "cloud," perhaps related to nebula "cloud, mist" (see nebula). Meaning "halo" is first recorded c.1730. Meteorological sense of "a rain cloud" is from 1803.