Anglo-Ind. Rarely campo. [app. ad. Pg. campo camp.] ‘Used for “a camp,” but formerly specifically applied to the partially disciplined brigades under European commanders in the Mahratta service’ (Yule).

1

1803.  Wellington, in Jas. Grant, Hist. India, I. lxx. 368/1. Their infantry, of which there were three campoos, fought well. Ibid., Lett., in Gurw., Disp., II. 390. Two battalions of the Begum’s Campoo escaped.

2

1883.  Q. Rev., April, 294 (Y.). Campos and pultuns (battalions) under European adventurers.

3