Webster’s Revised Unabridged Dictionary · 1913
Dismast
Dis·mast′ (dĭs·mȧst′), v. t. [imp. & p. p. Dismasted; p. pr. & vb. n. Dismasting.] [Pref. dis- + mast: cf. F. démâter.] To deprive of a mast of masts; to break and carry away the masts from; as, a storm dismasted the ship.