THESAURUS
feed on
batten on, batten upon, browse, consume, crop, devour, eat, fatten on, fatten upon, feast on, feast upon, graze, ingest, live off of, live on, meal, partake of, pasture on, prey on, sponge, sponge on, take
ROGET THESAURUS
feed on
Servility
VB
cringe, bow, stoop, kneel, bend the knee, fall on one's knees, prostrate oneself, worship, sneak, crawl, crouch, cower, sponge, truckle to, grovel, fawn, lick the feet of, kiss the hem of one's garment, kiss one's ass, suck up, pay court to,
feed on, fatten on, dance attendance on, pin oneself upon, hang on the sleeve of, avaler les couleuvres, keep time to, fetch and carry, do the dirty work of, go with the stream, worship the rising sun, hold with the hare and run with the hounds.