Cas"tle-guard` (?), n. 1. The guard or defense of a castle.
2. (O. Eng. Law) A tax or imposition an a dwelling within a certain distance of a castle, for the purpose of maintaining watch and ward in it; castle- ward.
3. A feudal tenure, obliging the tenant to perform service within the realm, without limitation of time.
Cas"tle*ry (?), n. [Cf. OF. castelerie. See Castle.] The government of a castle. Blount.
Cas"tlet (?), n. A small castle. Leland.
Cas"tle*ward` (?), n. Same as Castleguard.
Cast"ling (?), n. That which is cast or brought forth prematurely; an abortion. Sir T. Browne.
Cas"tling (?), n. (Chess) A compound move of the king and castle. See Castle, v. i.
Cast"-off` (?), a. Cast or laid aside; as, cast-off clothes.
Cas"tor (?), n. [L. castor the beaver, Gr. &?;; of uncertain origin.] 1. (Zo÷l.) A genus of rodents, including the beaver. See Beaver.