Flagellate \Flag"el*late\, v. t. [imp. & p. p. {Flagellated}; p. pr. & vb. n. {Flagellating}.] [L. flagellatus, p. p. of flagellare to scoure, fr. flagellum whip, dim. of flagrum whip, scoure; cf. fligere to strike. Cf. {Flall}.] To whip; to scourge; to flog. [1913 Webster]