Cōs'in-ağe, n.
(kŭz'n-ēj), n. [O. Fr. cosinage, cusi-nage, an act of a cousin or relative, from cosin, cusin, N. Fr. cousin, cousin, q. v.] (Law.) (a.) Collateral relationship or kindred by blood; consanguinity. Burrill. (b.) A writ to recover possession of an estate in lands, when a stranger has entered, after the death of the grandfather's grandfather, or other collateral relation. Blackstone.