go-between (n.) "one who passes between parties in a negotiation or intrigue," 1590s, from verbal phrase go between in obsolete sense "act as a mediator" (1540s), from go (v.) + between.
go-to-meeting (adj.) "suitable for use in a church or on Sundays," 1790, especially of clothes but the earliest recorded reference is to music. go through (v.) "to execute, carry to completion" (a plan, etc., often with with), 1560s; see go (v.) + through (adv.). Meaning "to examine" is 1660s; "to endure, suffer, undergo" is by 1712; "to wear out" (of clothes, etc.) by 1959. stop-and-go (adj.) 1926, originally a reference to traffic signals; see stop (v.), go (v.). Stop-go in same sense is from 1918. go out (v.) early 13c., "leave home," from go (v.) + out (adv.). Meaning "become extinct, expire" is from c. 1400.
go-cart (n.) also gocart, 1670s, originally "a litter, sedan chair;" also "an infant's walker" (1680s), from go + cart (n.). Later also of hand carts (1759). The modern form go-kart (1959) was coined in reference to a kind of miniature racing car with a frame body and a two-stroke engine. go over (v.) 1580s, "review point by point;" see go (v.) + over (adv.). Meaning "be successful" is from 1923. go-getter (n.) 1910, American English, from go + agent noun from get (v.). Goer, with essentially the same meaning, is attested from late 14c.
go together (v.) 1520s, "accompany," see go (v.) + together (adv.). From 1710 as "agree with, harmonize with;" 1899 as "be courting." go down (v.) c. 1300, "droop, descend," from go (v.) + down (adv.). Meaning "decline, fail" is from 1590s. Sense of "to happen" is from 1946, American-English slang. Go down on "perform oral sex on" is from 1916.