Sentence:  The defensive armor with which the horses of the ancient knights or men at arms were covered, or, to use the language of the time, <WSD>barded</WSD>, consisted of the following pieces made either of metal or jacked leather, the Chamfron, Chamfrein or Shaffron, the Criniere or Main Facre, the Poitrenal, Poitral or Breast Plate, and the Croupiere or Buttock Piece. 
Meaning of the word marked with <WSD> tags:  To cover a horse in defensive armor.