Obs. Punning alteration of cormorant, corvorant (as if f. corn + -vorant devouring), in allusion to the extortions of corn-mongers. Cf. CORN-MONGER, CORNMUDGIN.

1

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.

2

1631.  R. H., Arraignm. Whole Creature, xiii. § 1. 177. Eating like Cormorants (or Corn vorants).

3