Lewis Short
(verb) : ex-armo, āvi, ātum, 1
* To deprive of arms, to disarm (post-Aug.).
* Lit.: cohortes,Tac. H. 2, 76 fin.: dextras,Luc. 5, 356: Medos,id. 8, 387; Col. 7, 3, 5; cf. Lampr. Hel. 21.
* Transf.
* Trop., to disarm: filium mater Veturia lacrimis suis exarmavit,Flor. 1, 22, 3 Duker.; cf.: nautas mirabili forma,Petr. 105, 7: accusationem,Plin. Ep. 3, 9, 29.
* (Causa pro effectu.) To deprive of strength, to weaken: serpentem diro veneno,i. e. to render harmless,Sil. 1, 411; so, taurum,Val. Fl. 7, 597: tigres,Manil. 4, 235: aequor (terrae cingentes),Claud. Epigr. 35, 4: Romani exarmati,weakened,Vell. 2, 17 Ruhnk.
Charlton T. Lewis, Charles Short, A Latin Dictionary