Emily Dickinson Lexicon

ARM, v.t. [L. armo; Fr. armer; Sp. armar; It. armare; from L. arma.]

1. To furnish or equip with weapons of offense, or defense; as, to arm the militia.
2. To cover with a plate, or with whatever will add strength, force, or security; as, to arm the hilt of a sword.
3. To furnish with means of defense; to prepare for resistance; to fortify. Arm yourselves with the same mind. 1 Pet. iv.