Source : Webster's Revised Unabridged Dictionary (1913)

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.