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snob [snob 词源字典]: snob: [18] Snob originally meant a ‘shoemaker’. Cambridge University students of the late 18th century took it over as a slang term for a ‘townsman, someone not a member of the university’, and it seems to have been this usage which formed the basis in the 1830s for the emergence of the new general sense ‘member of the lower orders’ (‘The nobs have lost their dirty seats – the honest snobs have got ’em’, proclaimed the Lincoln Herald on 22 July 1831, anticipating the new Reform Act).

This in turn developed into ‘ostentatiously vulgar person’, but it was the novelist William Thackeray who really sowed the seeds of the word’s modern meaning in his Book of Snobs 1848, where he used it for ‘someone vulgarly aping his social superiors’. It has since broadened out to include those who insist on their gentility as well as those who aspire to it. As for the origins of the word snob itself, they remain a mystery.

An ingenious suggestion once put forward is that it came from s. nob., supposedly an abbreviation for Latin sine nobilitate ‘without nobility’, but this ignores the word’s early history.
[snob etymology, snob origin, 英语词源]
cit (n.): colloquial shortening of citizen, 1640s; contrasted to a countryman or a gentleman, usually with some measure of opprobrium (Johnson defines it as "A pert low townsman; a pragmatical trader").
city (n.): early 13c., in medieval usage a cathedral town, but originally "any settlement," regardless of size (distinction from town is 14c., though in English it always seems to have ranked above borough), from Old French cite "town, city" (10c., Modern French cité), from earlier citet, from Latin civitatem (nominative civitas; in Late Latin sometimes citatem) originally "citizenship, condition or rights of a citizen, membership in the community," later "community of citizens, state, commonwealth" (used, for instance of the Gaulish tribes), from civis "townsman," from PIE root *kei- "to lie; bed, couch; homestead; beloved, dear" (see cemetery).

The sense has been transferred from the inhabitants to the place. The Latin word for "city" was urbs, but a resident was civis. Civitas seems to have replaced urbs as Rome (the ultimate urbs) lost its prestige. Loss of Latin -v- is regular in French in some situations (compare alleger from alleviare; neige from nivea; jeune from juvenis. A different sound evolution from the Latin word yielded Italian citta, Catalan ciutat, Spanish ciudad, Portuguese cidade.

Replaced Old English burh (see borough). London is the city from 1550s. As an adjective from c. 1300. City hall first recorded 1670s to fight city hall is 1913, American English; city slicker first recorded 1916 (see slick); both American English. City limits is from 1825. The newspaper city desk attested from 1878. Inner city first attested 1968. City state (also city-state) is attested from 1877.
civic (adj.): 1540s, originally mostly in civic crown (Latin corona civica), a chaplet of oak leaves awarded to one who saved the life of a fellow citizen in battle, from Latin civicus "of a citizen," adjectival derivation of civis "townsman" (see city). Sense of "having to do with citizens" is from 1790.
civil (adj.): late 14c., "relating to civil law or life; pertaining to the internal affairs of a state," from Old French civil "civil, relating to civil law" (13c.) and directly from Latin civilis "relating to a citizen, relating to public life, befitting a citizen," hence by extension "popular, affable, courteous;" alternative adjectival derivation of civis "townsman" (see city).

The sense of "polite" was in classical Latin, from the courteous manners of citizens, as opposed to those of soldiers. But English did not pick up this nuance of the word until late 16c. "Courteous is thus more commonly said of superiors, civil of inferiors, since it implies or suggests the possibility of incivility or rudeness" [OED]. Civil case (as opposed to criminal) is recorded from 1610s. Civil liberty is by 1640s. Civil service is from 1772, originally in reference to the East India Company.
snob (n.): 1781, "a shoemaker, a shoemaker's apprentice," of unknown origin. It came to be used in Cambridge University slang c. 1796, often contemptuously, for "townsman, local merchant," and passed then into literary use, where by 1831 it was being used for "person of the ordinary or lower classes." Meaning "person who vulgarly apes his social superiors" is by 1843, popularized 1848 by William Thackeray's "Book of Snobs." The meaning later broadened to include those who insist on their gentility, in addition to those who merely aspire to it, and by 1911 the word had its main modern sense of "one who despises those considered inferior in rank, attainment, or taste."
townie (n.): also townee "townsman, one raised in a town," 1827, often opposed to the university students or circus workers who were just passing through, from town + -ie.