1580s, "review point by point;" see go (v.) + over (adv.). Meaning "be successful" is from 1923.

1520s, "accompany," see go (v.) + together (adv.). From 1710 as "agree with, harmonize with;" 1899 as "be courting."

1910, American English, from go + agent noun from get (v.). Goer, with essentially the same meaning, is attested from late 14c.

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.

by 1840, "pushing, driving," from verbal phrase go ahead; see go (v.) + ahead (adv.). Go ahead as a command or invitation to proceed is from 1831, American English.

"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.

"suitable for use in a church or on Sundays," 1790, especially of clothes but the earliest recorded reference is to music.

"where it is forbidden to go," 1971, from no + go (v.). Earlier it was a noun phrase for an impracticable situation (1870) and a type of horse race (by 1860).

"vanish, abscond," 1920s, American English, probably from mid-19c. notion of disappearing south to Mexico or Texas to escape pursuit or responsibility, reinforced by Native American belief (attested in colonial writing mid-18c.) that the soul journeys south after death.

1570s, of firearms, etc., "explode, be discharged;" see go (v.) + off (adv.); meaning "depart" is c. 1600; that of "deteriorate in condition" is from 1690s; that of "reprimand" is from 1941 (originally with at, since c. 2000 more often with on).