Dismast \Dis*mast"\, v. t. [imp. & p. p. {Dismasted}; p. pr. &
vb. n. {Dismasting}.] [Pref. dis- + mast: cf. F.
d['e]m[^a]ter.]
To deprive of a mast of masts; to break and carry away the
masts from; as, a storm dismasted the ship.
[1913 Webster]