Etymology
1. The noun is derived from Middle English ravin, ravine, raven (“rapine, robbery; rape; force, violence; greed, rapacity; stolen goods, booty, plunder; prey, quarry; pursuit of prey; predatoriness, voracity”), from Anglo-Norman ravein, raveine, ravine (“rapine, robbery; rape; force, violence; greed, rapacity; impetuousness; stolen goods”), Middle French ravine, and Old French ravine (“rapine, robbery; force, violence; impetuousness”), from Latin rapīna (“pillage, plunder, robbery, rapine; booty, plunder”), from rapiō (“to abduct, carry off; to grab, snatch; to rape; to steal”) (from Proto-Italic *rapjō (“to seize, take away”), ultimately from Proto-Indo-European *h₁rep- (“to snatch”)) + -īna (suffix forming abstract nouns).
2. The adjective is derived from Middle English ravin, ravine (“predatory; ravenous”), from Middle English ravin, ravine (noun): see above.
3. The verb is not attested before the 16th century, but words like Middle English raviner, ravinour (“plunderer; robber; rapist; predator”), ravening (“act of robbery; predatoriness, rapacity”, noun), and ravening, ravining (“(adjective) savage, ravening; (noun) preceded by ‘the’: the devil”) suggest that it existed in the 14th and 15th centuries, and was probably derived from the noun. Compare Middle French raviner (“to make furrows”), Old French raviner (“to take by force; to rush; to stream”) (modern French raviner). See: Latin Nouns '
rapīna', Middle English Nouns '
raviner'.