The Collaborative International Dictionary of English v.0.48:

Kibe \Kibe\, n. [W. cib + gwst pain, sickness.]
   A chap or crack in the flesh occasioned by cold; an ulcerated
   chilblain. "He galls his kibe." --Shak.
   [1913 Webster]

WordNet (r) 3.0 (2006):

kibe
    n 1: ulcerated chilblain on the heel