Etymology
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Words related to *gwora-

carnivorous (adj.)
"eating or feeding on flesh," 1640s, from Latin carnivorus "flesh-eating, feeding on flesh," from caro (genitive carnis) "flesh" (originally "a piece of flesh," from PIE root *sker- (1) "to cut") + vorare "to devour" (from PIE root *gwora- "food, devouring"). Related: Carnivorously; carnivorousness; carnivoracity.
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devour (v.)

early 14c., devouren, of beasts or persons, "to eat up entirely, eat ravenously, consume as food," from Old French devorer (12c.) "devour, swallow up, engulf," from Latin devorare "swallow down, accept eagerly," from de "down" (see de-) + vorare "to swallow" (from PIE root *gwora- "food, devouring"). Of persons or inanimate agents (fire, pestilence, etc.) "consume destructively or wastefully," late 14c. To "swallow up" figuratively (a book, etc.) from 1580s; to "take in ravenously" with the eyes, 1620s. Related: Devoured; devouring.

gorge (n.)
mid-14c., "throat," from Old French gorge "throat; a narrow passage" (12c.), from Late Latin gurges "gullet, throat, jaws," also "gulf, whirlpool," which probably is related to Latin gurgulio "gullet, windpipe," from a reduplicated form of PIE root *gwora- "food, devouring." Transferred sense of "deep, narrow valley" was in Old French. From 1520s as "what has been swallowed," hence in figurative phrases indicating nauseating disgust.
gurges (n.)
1660s, "heraldic spiral," from Latin gurges, literally "whirlpool," from PIE *gwrg-, reduplicated form of root *gwora- "food, devouring."
hellebore (n.)

late 14c., from Old French ellebore, from Latin elleborus, from Greek helleboros, the name given to various plants of both poisonous and medicinal qualities, reputed to cure madness; of uncertain origin. Perhaps literally "plant eaten by fawns," from Greek ellos/hellos "fawn" (from PIE *elno-, extended form of *el- (2) "red, brown," in animal and tree names; see elk) + bora "food of beasts," from bibroskein "to eat" (from PIE root *gwora- "food, devouring"). But Beekes writes, "The traditional etymology seems very doubtful; the word could well be non-IE, i.e. Pre-Greek." Related: Helleboric; helleboraceous.

herbivore (n.)
"plant-eating animal," 1851, from Modern Latin Herbivora (1830) or French herbivore (1748), from neuter plural of Latin herbivorus, from herba "a plant" (see herb) + vorare "devour, swallow" (from PIE root *gwora- "food, devouring").
herbivorous (adj.)
"plant-eating," 1660s, from Modern Latin herbivorus, from Latin herba "a plant" (see herb) + vorare "devour, swallow" (from PIE root *gwora- "food, devouring").
insectivore (n.)
1863, from French insectivore (1817), from Latin insectivorus, from combining form of insectum (see insect) + vorare "devour, swallow" (from PIE root *gwora- "food, devouring").
locavore (n.)
one who eats only locally grown or raised food, by 2001, from local (adj.) + ending abstracted from carnivore, etc., ultimately from Latin vorare "to devour" (from PIE root *gwora- "food, devouring").
omnivorous (adj.)

"eating food of every kind indiscriminately," 1650s, from Latin omnivorus "all-devouring," from omnis "all" (see omni-) + vorare "devour, swallow" (from PIE root *gwora- "food, devouring"). Figurative use by 1791. Related: Omnivorously; omnivorousness.