Artificial intelligent assistant

cooperison

cooˈperison, -izon Obs.
  [Alteration of caparison after L. cooperīre to cover.]
  = caparison.

1586 J. Ferne Blaz. Gentrie 102 Their armour and cooperizons of their horses. Ibid. 336 Any sadle..chapperon, cooperison, or other instrument. 1660 Waterhouse Arms & Arm. 67 A noble Horse..clad in Armour and Cooperizons.

  Hence coˈoperize v., to equip (a war horse).

1586 J. Ferne Blaz. Gentrie 67 The cooperizing or furnishing of a horsse of warre.

Oxford English Dictionary

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