Suppurate \Sup"pu*rate\, v. i. [imp. & p. p. {Suppurated}; p. pr. & vb. n. {Suppurating}.] [L. suppuratus, p. p. of suppurare to suppurate, cause to suppurate; sub under + pus, puris, matter. See {Pus}.] To generate pus; as, a boil or abscess suppurates.