nook (n.) Look up nook at Dictionary.com
c.1300, noke, of unknown origin. Possibly connected with Norwegian dialectal nokke "hook, bent figure," or Old English hnecca "neck," but the sense evolution would be difficult.
nookie (n.) Look up nookie at Dictionary.com
"sexual activity," 1928, perhaps from Dutch neuken "to copulate with."
noon (n.) Look up noon at Dictionary.com
mid-12c., non "midday, 12 o'clock p.m., midday meal," from Old English non "3 o'clock p.m., the ninth hour," also "the canonical hour of nones," from Latin nona hora "ninth hour" of daylight, by Roman reckoning about 3 p.m., from nona, fem. singular of nonus "ninth" (see nones). Sense shift from "3 p.m." to "12 p.m." began during 12c., when time of Church prayers shifted from ninth hour to sixth hour, or perhaps because the customary time of the midday meal shifted, or both. The shift was complete by 14c. (same evolution in Dutch noen).
noonday (n.) Look up noonday at Dictionary.com
"middle of the day," first used by Coverdale (1535), from noon + day.
noose (n.) Look up noose at Dictionary.com
mid-15c., perhaps from Old French nos or cognate Old Provençal nous "knot," from Latin nodus "knot" (see net (n.)). Rare before c.1600.
nopal (n.) Look up nopal at Dictionary.com
Mexican cactus, from American Spanish, from Nahuatl (Aztecan) nopalli.
nope (adv.) Look up nope at Dictionary.com
1888, emphatic form of no, with emphasis on the closing of the lips.
nor (conj.) Look up nor at Dictionary.com
c.1300, contraction of Middle English nauther (see neither). Influenced in form by or.
Nora Look up Nora at Dictionary.com
fem. proper name, Irish, shortened from Honora or Leonora.
Nordic (adj.) Look up Nordic at Dictionary.com
1898, from French nordique (in J. Deniker's system of race classifications), literally "of or pertaining to the north," from nord "north" (a loan-word from Old English; see north). Perhaps influenced by German Nordisch. As a noun, from 1901. Strictly, the blond peoples who inhabit Scandinavia and the north of Britain. As a type of skiing competition, it is attested from 1954.
norepinephrine (n.) Look up norepinephrine at Dictionary.com
1868, from normal (in reference to molecular structure) + epinephrine.
Norfolk Look up Norfolk at Dictionary.com
Nordfolc (1066) "(Territory of the) Northern People (of the East Angles)." The Norfolk pine (1778), used as an ornamental tree, is from Norfolk Island in the South Pacific, northwest of New Zealand.
norm (n.) Look up norm at Dictionary.com
"standard, pattern, model," 1821, from French norme, from Latin norma "carpenter's square, rule, pattern," of unknown origin. Klein suggests a borrowing (via Etruscan) of Greek gnomon "carpenter's square." The Latin form of the word, norma, was used in English in the sense of "carpenter's square" from 1670s.
Norma Look up Norma at Dictionary.com
fem. proper name, probably from Latin norma (see norm).
normal (adj.) Look up normal at Dictionary.com
c.1500, "typical, common;" 1640s, "standing at a right angle," from Late Latin normalis "in conformity with rule, normal," from Latin normalis "made according to a carpenter's square," from norma "rule, pattern," literally "carpenter's square" (see norm). Meaning "conforming to common standards, usual" is from 1828, but probably older than the record [Barnhart].

As a noun meaning "usual state or condition," from 1890. Sense of "normal person or thing" is from 1894. Normal school (1834) is from French école normale (1794), a republican foundation. The city of Normal, Illinois, U.S., was named 1857 for the normal school established there.
normalcy (n.) Look up normalcy at Dictionary.com
1857, "mathematical condition of being at right angles," from normal + -cy. Associated since c.1920 with U.S. president Warren G. Harding and derided as an example of his incompetent speaking style. Previously used mostly in the mathematical sense. The word prefered by purists for "a normal situation" is normality (1849).
normality (n.) Look up normality at Dictionary.com
1849, from normal + -ity. Perhaps influenced by French normalité (1834).
normalization (n.) Look up normalization at Dictionary.com
1882, from normalize + -ation. International political sense recorded from 1938.
normalize (v.) Look up normalize at Dictionary.com
1865, from normal + -ize. Related: Normalized; normalizing.
normally (adv.) Look up normally at Dictionary.com
1590s, "regularly," from normal + -ly (2). Meaning "under ordinary conditions" is from 1853.
Norman (n.) Look up Norman at Dictionary.com
c.1200, "one of the mixed Scandinavian-Frankish people who conquered England in 1066," from Old French Normanz, plural of Normand, Normant, literally "North man," from a Scandinavian word meaning "northman" (see Norse), in reference to the Scandinavian people who overran and occupied Normandy 10c. Later meaning "one of the Norman French who conquered England in 1066." As an adjective from 1580s. As a style of architecture, developed in Normandy and employed in England after the conquest, it is attested from 1797. Norseman (1817) is not historical and appears to be due to Scott.
Normandy Look up Normandy at Dictionary.com
literally "region settled by Vikings;" from Normand (see Norman).
normative (adj.) Look up normative at Dictionary.com
1880, perhaps from French normatif, from Latin norma "rule" (see normal).
Norn (n.) Look up Norn at Dictionary.com
1770, from Old Norse norn (plural nornir), one of the female fates of Scandinavian mythology, related to Swedish dialectal norna "to warn, to communicate secretly," perhaps ultimately imitative of low murmuring (compare Middle High German narren "to growl, snarl").
Norse (n.) Look up Norse at Dictionary.com
1590s, "a Norwegian," from obsolete Dutch Noorsch (adj.) "Norwegian," from noordsch "northern, nordic," from noord "north" (see north). Also in some cases borrowed from cognate Danish or Norwegian norsk. As a language, from 1680s. Old Norse attested from 1844. An Old English word for "a Norwegian" was Norðman. As an adjective from 1768.

In Old French, Norois as a noun meant "a Norse, Norseman," also "action worth of a man from the North (i.e. usually considered as deceitful)" [Hindley, et. al.]; as an adjective it meant "northern, Norse, Norwegian," also "proud, fierce, fiery, strong."
north Look up north at Dictionary.com
Old English norð "northern" (adj.), "northwards" (adv.), from Proto-Germanic *nurtha- (cognates: Old Norse norðr, Old Saxon north, Old Frisian north, Middle Dutch nort, Dutch noord, German nord), possibly ultimately from PIE *ner- (1) "left," also "below," as north is to the left when one faces the rising sun (cognates: Sanskrit narakah "hell," Greek enerthen "from beneath," Oscan-Umbrian nertrak "left"). The same notion underlies Old Irish tuath "left; northern;" Arabic shamal "left hand; north." The usual word for "north" in the Romance languages ultimately is from English, for example Old French north (Modern French nord), borrowed from Old English norð; Italian, Spanish norte are borrowed from French.
Ask where's the North? At York 'tis on the Tweed;
In Scotland at the Orcades; and there
At Greenland, Zembla, or the Lord knows where.
[Pope, "Essay on Man"]
As a noun, c.1200, from the adverb. North Pole attested from mid-15c. (earlier the Arctic pole, late 14c.). North American (n.) first used 1766, by Franklin; as an adjective, from 1770.
North Sea Look up North Sea at Dictionary.com
Old English norðsæ, usually meaning "the Bristol Channel." The application to the body of water presently so named (late 13c.) is from Dutch (Noordzee, Middle Dutch Noortzee); it lies to the north of Holland, where it was contrasted with the inland Zuider Zee, literally "Southern Sea"). To the Danes, it sometimes was Vesterhavet "West Sea." In English, this had been typically called the "German Sea" or "German Ocean," which follows the Roman name for it, Oceanus Germanicus. "German" persisted on some British maps at least into the 1830s.
North Star (n.) Look up North Star at Dictionary.com
"Pole Star, Polaris," Middle English norþe sterre (late 14c.); cognates: Middle Dutch noirdstern, German nordstern.
north-bound (adj.) Look up north-bound at Dictionary.com
1903, from north + bound (adj.2).
north-easter (n.) Look up north-easter at Dictionary.com
sometimes nor'easter, "wind blowing from the northeast," 1794, from northeast.
northeast Look up northeast at Dictionary.com
Old English norð east; see north + east. Related: Northeasterly (1743).
northerly (adj., adv.) Look up northerly at Dictionary.com
1550s, from northern + -ly (2) on pattern of easterly, westerly.
northern (adj.) Look up northern at Dictionary.com
Old English norþerna, norðerne "northern, Northumbrian, Scandinavian," cognate with Old High German nordroni, Old Norse norroenn (see north). With -erne, suffix denoting direction. Related: Northernmost. Northerner in U.S. geo-political sense is attested from 1831. Northern lights "aurora borealis" first recorded by that name 1721 (earlier north-light, 1706).
Northumbria Look up Northumbria at Dictionary.com
Anglo-Saxon kingdom of Norðhymbre, which lay north of the river Humber (Latin Humbri fluminis, c.720), an ancient pre-English river name of unknown origin. Related: Northumbrian. The Northumbrians seem at times to have referred to the Mercians as Southumbrians.
northward (adv.) Look up northward at Dictionary.com
Old English norðweard; see north + -ward. Related: Northwards.
northwest Look up northwest at Dictionary.com
Old English norðwest (adv.); from north + west. As a noun from late 14c. Related: Northwestern; northwesterly; northwestward. Northwest Passage first attested c.1600.
Norway Look up Norway at Dictionary.com
Old English Norweg, Norþweg from Old Norse Norvegr "north way, a way leading to the north" (see north + way (n.)); contrasted with suthrvegar "south way," i.e. Germany, and austrvegr "east way," the Baltic lands.
Norwegian Look up Norwegian at Dictionary.com
c.1600 (n. and adj.), sometimes in early use Norvegian, from Medieval Latin Norvegia "Norway," from Old Norse Norvegr (see Norway) + -ian.
nose (v.) Look up nose at Dictionary.com
"perceive the smell of," 1570s; "pry, search," 1640s, from nose (n.). Related: Nosed; nosing.
nose (n.) Look up nose at Dictionary.com
Old English nosu, from Proto-Germanic *nusus (cognates: Old Norse nös, Old Frisian nose, Dutch neus, Old High German nasa, German Nase), from PIE *nas- "nose" (cognates: Sanskrit nasa, Old Persian naham, Old Church Slavonic nasu, Lithuanian nosis, Latin nasus "nose"). Used of any prominent or projecting part from 1530s. (nose cone in the space rocket sense is from 1949). Used to indicate "something obvious" from 1590s. Meaning "odor, scent" is from 1894.
Kiv, It could bee no other then his owne manne, that had thrust his nose so farre out of ioynte. ["Barnabe Riche His Farewell to Military Profession," 1581]
Pay through the nose (1670s) seems to suggest "bleed." Many extended meanings are from the horse-racing sense of "length of a horse's nose," as a measure of distance between two finishers (1908). To turn up one's nose "show disdain" is from 1818 (earlier hold up one's nose, 1570s); similar notion in look down one's nose (1921). To say something is under (one's) nose "in plain view" is from 1540s.
nose job (n.) Look up nose job at Dictionary.com
"rhinoplasty," 1963, from nose (n.) + job (n.).
nose-bleed (n.) Look up nose-bleed at Dictionary.com
1848, from nose (n.) + bleed (n.).
nose-dive (n.) Look up nose-dive at Dictionary.com
"sudden large decrease," 1920, from airplane sense, first attested 1912, from nose (n.) + dive (n.). As a verb from 1915.
nose-ring (n.) Look up nose-ring at Dictionary.com
1778 as something to lead an animal by, from nose (n.) + ring (n.1). As something to ornament a person, from 1819.
nosegay (n.) Look up nosegay at Dictionary.com
"bunch of flowers," early 15c., from nose (n.) + gay in an obsolete noun sense of "gay or bright thing."
nosey (adj.) Look up nosey at Dictionary.com
see nosy.
nosh (v.) Look up nosh at Dictionary.com
1957, from Yiddish nashn "nibble," from Middle High German naschen, from Old High German hnascon, nascon "to nibble," from Proto-Germanic *(g)naskon. Related: Noshed; noshing. Earlier as a noun (1917) meaning "a restaurant," short for nosh-house.
noso- Look up noso- at Dictionary.com
word-forming element meaning "disease," from comb. form of Greek nosos "disease, sickness, malady," of unknown origin.
nosocomial (adj.) Look up nosocomial at Dictionary.com
1855, from Latin nosocomium, from Greek nosokomeion, from nosos "disease." Nosocome was a 17c. word for "hospital."
nosology (n.) Look up nosology at Dictionary.com
"study of diseases," 1721, from Modern Latin nosologia (perhaps via French nosologie), from noso- + -logy. Related: Nosological; nosologist.