late 15c., "about to happen or appear," present-participle adjective from Middle English forthcomen, from Old English forðcuman "to come forth, come to pass;" see forth + come (v.). Meaning "informative, responsive" is from 1835, via the notion of "in such a position or condition, as a person or a thing, that his or its presence when needed can be counted on." A once-common verb formation; English also had forthbring, forthcall, forthdo, forthgo, forthpass, forthset, all now obsolete.
c. 1500, "a discoverer, one who finds out" (now obsolete), from Latin inventor (fem. inventrix, source of French inventeur (15c.), Spanish inventor, Italian inventore) "contriver, author, discoverer, proposer, founder," agent noun from past-participle stem of invenire "to come upon, find; find out; invent, discover, devise; ascertain; acquire, get earn," from in- "in, on" (from PIE root *en "in") + venire "to come," from a suffixed form of PIE root *gwa- "to go, come." Meaning "one who contrives or produces a new thing or process" is from 1550s.
1640s, in astronomy, of a star or planet, "come to or be on the highest point of altitude; come to or be on the meridian," from Late Latin culminatus past participle of culminare "to top, to crown," from Latin culmen (genitive culminis) "top, peak, summit, roof, gable," also used figuratively, a contraction of columen "top, summit" (from PIE root *kel- (2) "to be prominent; hill"). Figurative sense in English of "reach the highest point" is from 1660s. Related: Culminant; culminated; culminating.
"limiting conditions," early 14c.; see term (n.). Hence expressions such as come to terms, make terms, on any terms, etc. Meaning "standing, footing, mutual relations," as in expression on good terms (with someone), is recorded from 1540s.
1660s, elliptical for venire facias (mid-15c.), Latin, literally "that you cause to come," formerly the first words in a writ to a sheriff to summon a jury, from venire "to come," from PIE root *gwa- "to go, come."
late 14c., succeden, intransitive and transitive, "come next after, follow after another; take the place of another, be elected or chosen for" a position, from Old French succeder "to follow on" (14c.) and directly from Latin succedere "come after, follow after; go near to; come under; take the place of," also "go from under, mount up, ascend," hence "get on well, prosper, be victorious," from sub "next to, after" (see sub-) + cedere "go, move" (from PIE root *ked- "to go, yield").
Meaning "to continue, endure" is from early 15c. The sense of "turn out well, have a favorable result" in English is first recorded late 15c., with ellipsis of adverb (succeed well). Of persons, "to be successful," from c. 1500. Related: Succeeded; succeeding.
1570s, "come down in showers;" 1580s, "to discharge a shower on; wet copiously with or as with liquid sprayed," from shower (n.1). Intransitive sense of "take a shower" is by 1930. Related: Showered; showering.
to come on like gangbusters (c. 1940) is from popular U.S. radio crime-fighting drama "Gang Busters" (1937-57) which always opened with a cacophony of sirens, screams, pistol shots, and jarring music.