1650s, from Latin omnivorus "all-devouring," from omnis "all" (see omni-) + vorare "devour, swallow" (from PIE root *gwora- "food, devouring"). Related: Omnivorously; omnivorousness.
omniscience
omniscient
omnisexual
omnium gatherum
omnivore
omnivorous
omo-
omophagous
omphalo-
omphalos
omphaloskepsis
