† seˈquestererObs.rare. Also 6 sequestrer. [f. sequester v. + -er1.] = sequester n. 14..Nom. in Wr.-Wülcker 682/7 Hic sequestarius, a sequesterer.1555W. Watreman Fardle Facions ii. i. 113 He that was the sequestrer of the couenante, becometh suretie for the parties.