expurgate

v. t. [ imp. & p. p. Expurgated p. pr. & vb. n. Expurgating ] [ L. expurgatus, p. p. of expurgare to purge, purify; ex out, from + purgare to cleanse, purify, purge. See Purge, and cf. Spurge. ] To purify; to clear from anything noxious, offensive, or erroneous; to cleanse; to purge; as, to expurgate a book. [ 1913 Webster ]