Obs. Punning alteration of cormorant, corvorant (as if f. corn + -vorant devouring), in allusion to the extortions of corn-mongers. Cf. CORN-MONGER, CORNMUDGIN.
1609. W. M., Man in Moone, in Halliw., Character Bks. (1857), 103. He is an insatiable cormorant, or rather cornevorant a mercilesse money-monger and unconscionable extortioner.
1631. R. H., Arraignm. Whole Creature, xiii. § 1. 177. Eating like Cormorants (or Corn vorants).