Artificial intelligent assistant

chaco

chaco
  (ˈʃækəʊ)
  Also chako, and more usually shako, q.v.
  [a. Magyar csákó (ˈtʃaːkoː); in Ger. tschako, Fr. schako (Littré).]
  A military cap of cloth and leather, formerly worn by the infantry in the British army, having the form of a truncated cone with a peak in front.

1826 Soldier's Album 11 Snatching up my chaco, I flew to the street. 1840 Times 1 Sept., The cumbersome bear⁓skin cap..is to be discontinued, and replaced by a smart chaco. 1851 Ord. & Regul. R. Engineers §24. 119 The Scales of the Chaco are to be worn under the chin on all Parades and Duties under Arms. 1866 Army & Navy G. 29 Sept., The chaco is reported as quite unsuited to the climate and hot sun.

Oxford English Dictionary

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