1680s, probably from earlier suffe (1590s), of uncertain origin. Originally used in reference to the coast of India, hence perhaps of Indic origin. Or perhaps a phonological respelling of sough, which meant "a rushing sound."
1955, verbal noun from surf (v.). The surfing craze went nationwide in U.S. from California in 1963. Surf-board is from 1826, originally in a Hawaiian and Polynesian context. Surf music attested from 1963.
It is highly amusing to a stranger to go out into the south part of this town, some day when the sea is rolling in heavily over the reef, and to observe there the evolutions and rapid career of a company of surf-players. The sport is so attractive and full of wild excitement to Hawaiians, and withal so healthful, that I cannot but hope it will be many years before civilization shall look it out of countenance, or make it disreputable to indulge in this manly, though it be dangerous, exercise. [the Rev. Henry T. Cheever, "Life in the Sandwich Islands," New York, 1851]
"The basis of surfing music is a rock and roll bass beat figuration, coupled with a raunch-type weird-sounding lead guitar plus wailing saxes. Surfing music has to sound untrained with a certain rough flavor to appeal to the teenagers." [music publisher Murray Wilson, quoted in Billboard, June 29, 1963]
"crudeness, earthiness," 1963 (in Billboard magazine, describing lead guitar on surf music tracks), back-formation from raunchy. There was a singing group in U.S. c. 1960 called the Raunch Hands.
beach city northwest of Los Angeles, said to be from a native language, Chumash, and the name of one of their settlements nearby, Humaliwo, which is said to mean "where the surf sounds loudly." Modern development there dates from 1926.
1560s, "large group of persons, multitude," from crowd (v.). The earlier word was press (n.). Crowd (n.) was used earlier in the now-archaic sense of "act of pressing or shoving" (c. 1300). From 1650s as "any group or company of persons contemplated in a mass." Crowd-pleaser is by 1924; crowd-control is by 1915; crowd-surf (v.) is by 1995; crowdsourcing (n.) is from 2006.
Old English (and northern Middle English) had brim "sea, surf, pool, spring, river, body of water," of uncertain origin but probably unrelated, perhaps from the Germanic stem *brem- "to roar, rage." "It became obs. in ME.; but was perhaps used by Spenser" [OED].