dĕ-armo — Lewis & Short
dĕ-armo, āvi, ātum, l, v. a.
I Aliquem, to disarm (except in particip., late Lat. for armis spoliare):
dearmatus exercitus,Liv. 4. 10, 7.—
II Aliquid, to deprive of power, blunt:
pharetram expilet, sagittas dearmet,App. M. 5, p. 172, 25.