"a foreknower or foreteller of future events by present signs, a soothsayer," 1550s, agent noun in Latin form from prognosticate.
c. 1300, "soothsayer, sorcerer, astrologer," from Old French devin "soothsayer; theologian" and directly from Latin divinus, "soothsayer, augur," noun use of an adjective meaning "of or belonging to a god," from divus "of or belonging to a god, inspired, prophetic," related to deus "god, deity" (from PIE root *dyeu- "to shine," in derivatives "sky, heaven, god").
Meaning "ecclesiastic, theologian, man skilled in divinity" is from late 14c. Sense of "divine nature, divineness" is from late 14c.
1580s, from Latin haruspex (plural haruspices) "soothsayer by means of entrails," first element from PIE root *ghere- "gut, entrail;" second element from Latin spic- "beholding, inspecting," from PIE *speks "he who sees," from root *spek- "to observe." The practice is Etruscan. Related: Haruspical; haruspication.
late 12c., "person who speaks for God; one who foretells, inspired preacher," from Old French prophete, profete "prophet, soothsayer" (11c., Modern French prophète) and directly from Latin propheta, from Greek prophētēs (Doric prophatēs) "an interpreter, spokesman, proclaimer; a harbinger" (as cicadas of summer), but especially "one who speaks for a god, inspired preacher or teacher," from pro "before" (from PIE root *per- (1) "forward," hence "in front of, before") + root of phanai "to speak" (from PIE root *bha- (2) "to speak, tell, say").
The Greek word was used in Septuagint for Hebrew nabj "soothsayer, inspired prophet." Early Latin writers translated Greek prophetes with Latin vates, but the Latinized form propheta predominated in post-Classical times, chiefly due to Christian writers, probably because of pagan associations of vates. In English, meaning "prophetic writer of the Old Testament" is from late 14c. Non-religious sense is from 1848; used of Muhammad by 1610s (translating Arabic al-nabiy, and sometimes also al-rasul, properly "the messenger"). The Latin word is glossed in Old English by witga. The Prophets for "the prophetic books of the Old Testament" is by late 14c.
1550s, from Latin mons Vaticanus, Roman hill on which Papal palace stands. By Klein's sources said to be an Etruscan loan-word and unrelated to vates "soothsayer, prophet, seer" (see vates), but most others seem to think it is related, on the notion of "hill of prophecy" (compare vaticinatio "a foretelling, soothsaying, prophesying," vaticinari "to foretell").
"relating to or pertaining to prophecy or divination," 1836, from Greek mantikos "prophetic, oracular, of or for a soothsayer," from mantis "one who divines, a seer, prophet; one touched by divine madness," from mainesthai "be inspired," which is related to menos "passion, spirit," from PIE *mnyo-, suffixed form of root *men- (1) "to think," with derivatives referring to qualities and states of mind or thought. Related: Mantical (1580s).