"of or pertaining to an archetype," 1640s; see archetype + -al (1). The Jungian sense is from 1923.

1667, from arch (adj.) + fiend (n.). Originally and typically Satan (arch-foe "Satan" is from 1610s).

So stretcht out huge in length the Arch-fiend lay. ["Paradise Lost," 1667]

also archrival, "chief opponent or competitor for the same goal," by 1805, from arch- + rival (n.).

early 14c., "to form an arch" (implied in arched); c. 1400 in transitive sense "furnish with an arch," from arch (n.). Related: Arching.

"of or pertaining to archangels," mid-15c.; see archangel + -ic.

see archives.

"a desperate, confirmed villain," c. 1600, from arch- + villain.

"ideally rustic or rural;" as a noun, "an idealized rustic," 1580s, from Greek Arkadia, a mountainous district landlocked in the Peloponnesus, regarded by the ancient Greeks as rude, impoverished, and inhospitable, but taken by 16c. European poets as an ideal region of rural felicity. See Arcadia.

"model, first form, original pattern from which copies are made," 1540s [Barnhart] or c. 1600 [OED], from Latin archetypum, from Greek arkhetypon "pattern, model, figure on a seal," neuter of adjective arkhetypos "first-moulded," from arkhē "beginning, origin, first place" (verbal noun of arkhein "to be the first;" see archon) + typos "model, type, blow, mark of a blow" (see type).

The Jungian psychology sense of "pervasive idea or image from the collective unconscious" is from 1919. Jung defined archetypal images as "forms or images of a collective nature which occur practically all over the earth as constituents of myths and at the same time as autochthonous individual products of unconscious origin." ["Psychology and Religion" 1937]

one of the nine chief magistrates of ancient Athens, 1650s, from Greek arkhon "ruler, commander, chief, captain," noun use of present participle of arkhein "be the first," thence "to begin, begin from or with, make preparation for;" also "to rule, lead the way, govern, rule over, be leader of," a word of uncertain origin.