Old English stret (Mercian, Kentish), stræt (West Saxon) "street, high road," from Late Latin strata, used elliptically for via strata "paved road," from fem. past participle of Latin sternere "lay down, spread out, pave," from PIE *stre-to- "to stretch, extend," from root *stere- "to spread, extend, stretch out," from nasalized form of PIE root *stere- "to spread."
One of the few words in use in England continuously from Roman times. An early and widespread Germanic borrowing (Old Frisian strete, Old Saxon strata, Middle Dutch strate, Dutch straat, Old High German straza, German Strasse, Swedish stråt, Danish sträde "street"). The Latin is also the source of Spanish estrada, Old French estrée, Italian strada.
"The normal term in OE for a paved way or Roman road, later extended to other roads, urban streets, and in SE dialects to a street of dwellings, a straggling village or hamlet" [Cambridge Dictionary of English Place-Names]. Originally of Roman roads (Watling Street, Icknield Street). "In the Middle Ages, a road or way was merely a direction in which people rode or went, the name street being reserved for the made road" [Weekley].
Used since c. 1400 to mean "the people in the street;" modern sense of "the realm of the people as the source of political support" dates from 1931. The street for an especially important street is from 1560s (originally of London's Lombard-street). Man in the street "ordinary person, non-expert" is attested from 1831. Street people "the homeless" is from 1967; expression on the street "homeless" is from 1852. Street smarts is from 1971; street-credibility is from 1979. Street-sweeper as an occupation is from 1848.
c. 1200, 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- (1) "to lie," also forming words for "bed, couch," and with a secondary sense of "beloved, dear."
Now "a large and important town," but originally in early Middle English a walled town, a capital or cathedral town. Distinction from town is early 14c. OED calls it "Not a native designation, but app[arently] at first a somewhat grandiose title, used instead of the OE. burh"(see borough).
Between Latin and English the sense was 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.
London is the city from 1550s. As an adjective, "pertaining to a city, urban," from c. 1300. City hall "chief municipal offices" is first recorded 1670s; to fight city hall is 1913, American English. City slicker "a smart and plausible rogue, of a kind usu. found in cities" [OED] is first recorded 1916 (see slick (adj.)). City limits is from 1825.
The newspaper city-editor, who superintends the collection and publication of local news, is from 1834, American English; hence city desk attested from 1878. Inner city first attested 1968.