polyphagia (n.)

1690s, "eating to excess," medical Latin, from Greek polyphagia "excess in eating," from polyphagos "eating to excess," from polys "much" (from PIE root *pele- (1) "to fill") + phagein "to eat" (from PIE root *bhag- "to share out, apportion; to get a share"). Attested from 1890 in the sense of "feeding on various kinds or many different kinds of food." Nativized as polyphagy (1802). Related: Polyphagic; polyphagous.