Expurgate /(ĕks"pŭr*gāt [or] ĕks*pûr"gāt; 277)/

imp. & p. p. Expurgated; p. pr. & vb. n. Expurgating

1. To purify; to clear from anything noxious, offensive, or erroneous; to cleanse; to purge; as, to expurgate a book.