θωρᾱκ-ίζω · thōrak-izō — LSJ
arm with a breastplate or corslet, θωρακίσας αὐτοὺς καὶ ἵππους X. Cyr. 8.8.22:—Med., put on oneʼs breastplate, Id. An. 2.2.14:—Pass., θωρακισθείς ib. 3.4.35; τεθωρακισμένοι cuirassiers, Th. 2.100, X. An. 2.5.35; ἄγαλμα τεθ. OGI 332.7 (Elaea, ii B.C.).
generally, cover with defensive armour, τοὺς ἡνιόχους ἐθωράκισε πλὴν τῶν ὀφθαλμῶν X. Cyr. 6.1.29; ὄγκῳ . . χλανίδος εὖ τεθωρακισμένος Ephipp. 14.10: metaph., θ. ἑαυτούς, of wild boars, to sheathe themselves in mud, preparatory to fighting, Arist. HA 571b16; of the ichneumon, θωρακισθεὶς πηλῷ Str. 17.1.39.