'instup' definitions:

Definition of 'instup'

From: GCIDE
  • Instep \In"step\, n. [Formerly also instop, instup.] [1913 Webster]
  • 1. The arched middle portion of the human foot next in front of the ankle joint. [1913 Webster]
  • 2. The part of a shoe, boot, or stocking covering the instep[1]. [PJC]
  • 3. That part of the hind leg of the horse and allied animals, between the hock, or ham, and the pastern joint. [1913 Webster]