battalia

noun2

1. •
   (no longer used) Order of battle; disposition or arrangement of troops or of a naval force, ready for action.

   • Two rival armies all the plain o'erspread, / Each in battalia rang'd, and shining arms array'd — 1695
2. •
   (no longer used) An army in battle array; also, the main battalia or body of the army, as distinct from the vanguard and rear.

   • Why, our battalia trebles that account — 1592