英语词源字典 - 在线词源网站

No.[No. 词源字典]: as an abbreviation meaning (and pronounced) "number," 1660s, from Latin numero, ablative singular of numerus (see number (n.)).[No. etymology, No. origin, 英语词源]
Noah: masc. proper name, from Hebrew Noah, literally "rest." Phrase Noah's ark attested from 1610s. The adjective Noachian, in reference to the flood legend, is from 1670s.
nob (n.): "head," c. 1700, slang variant of knob (q.v.).
Nobel: 1900, in reference to five prizes (in physics, chemistry, medicine, literature, and peace) established in the will of Alfred Nobel (1833-1896), Swedish chemist and engineer, inventor of dynamite. A sixth prize, in economics, was added in 1969. Related: Nobelist.
nobelium (n.): 1957, from Nobel + -ium.
nobility (n.): mid-14c., "quality of being excellent or rare," from Old French nobilite "high rank; dignity, grace; great deed" (12c., Modern French nobilité), and directly from Latin nobilitatem (nominative nobilitas) "celebrity, fame; high birth; excellence, superiority; the nobles," from nobilis "well-known, prominent" (see noble (adj.)). Meaning "quality of being of noble rank or birth" is attested from late 14c.; sense of "noble class collectively" is from 1520s.
noble (adj.): c. 1200, "illustrious, distinguished; worthy of honor or respect," from Old French noble "of noble bearing or birth," from Latin nobilis "well-known, famous, renowned; excellent, superior, splendid; high-born, of superior birth," earlier *gnobilis, literally "knowable," from gnoscere "to come to know," from PIE root *gno- "to know" (see know). The prominent Roman families, which were "well known," provided most of the Republic's public officials.

Meaning "distinguished by rank, title, or birth" is first recorded late 13c. Sense of "having lofty character, having high moral qualities" is from c. 1600. A noble gas (1902) is so called for its inactivity or intertness; a use of the word that had been applied in Middle English to precious stones, metals, etc., of similar quality (late 14c.), from the sense of "having admirable properties" (c. 1300).
noble (n.): "man of rank," c. 1300, from noble (adj.). The same noun sense also is in Old French and Latin. Late 14c. as the name of an English coin first issued in reign of Edward III.
nobleman (n.): c. 1300, from noble (adj.) + man (n.). Noblewoman is from 1570s.
noblesse (n.): early 13c., "noble birth or condition," from Old French noblece "noble birth, splendor, magnificence" (Modern French noblesse), from Vulgar Latin *nobilitia, from Latin nobilis (see noble (adj.)). French phrase noblesse oblige "privilege entails responsibility" is attested in English first in 1837.
nobly (adv.): c. 1300, "valorous, courageous, spirited," from noble (adj.) + -ly (2). Meaning "of or befitting noble birth or descent, of high ancestry" is from 1590s.
Nobodaddy (n.): c. 1793, William Blake's derisive name for the anthropomorphic God of Christianity.
nobody (n.): mid-14c., no body "no person noone," from Middle English no (adj.) "not any" + bodi (see body (n.)). Written as two words 14c.-18c.; hyphenated 17c.-18c. Incorrect use with their is attested from 1540s. Meaning "person of no importance" is from 1580s.
nociceptive (adj.): 1904, from Latin noci-, comb. form of nocere "to do harm" (see innocuous) + second element from receptive.
nock (n.): "notch on a bow," late 14c., of uncertain origin, probably from a Scandinavian source (such as Swedish nock "notch"), but compare Low German nokk, Dutch nok "tip of a sail." Perhaps connected to nook.
nock (v.): "fit (an arrow) to a bowstring," 1510s, from nock (n.). Related: Nocked; nocking.
nocturn (n.): a division of the office of matins, early 13c., from Old French nocturne "evening service; curfew," from Medieval Latin nocturna, "group of Psalms used in the nocturns," from Latin nocturnus (see nocturnal).
nocturnal (adj.): late 15c., from Old French nocturnal "nightly, nocturnal," or directly from Late Latin nocturnalis, from Latin nocturnus "belonging to the night," from nox (genitive noctis) "night," cognate with Old English neaht (see night) + -urnus, suffix forming adjectives of time. Nocturnal emission "involuntary ejaculation during sleep" first recorded 1813.
nocturne (n.): 1851, "composition of a dreamy character," from French nocturne, literally "composition appropriate to the night," noun use of Old French nocturne "nocturnal," from Latin nocturnus (see nocturnal). The style and the name are said to have originated c. 1814 with Irish-born composer John Field (c. 1782-1837), who wrote many of them, in a style that Chopin mastered in his own works, which popularized the term. But his work seems to have been appreciated in German and French publications before it came to attention in England in 1851.
nocuous (adj.): 1630s, "noxious, harmful," from Latin nocuus "harmful," from stem of nocere "to hurt, injure, harm" (see innocuous).