ex·pur·gate (ěk'spər-gāt') tr.v.
ex·pur·gat·ed, ex·pur·gat·ing, ex·pur·gates To remove erroneous, vulgar, obscene, or otherwise objectionable material from (a book, for example) before publication.
[Latin expūrgāre, expūrgāt-, to purify : ex-, intensive pref.; see ex- + pūrgāre, to cleanse; see peuə- in Indo-European roots.] ex'pur·ga'tion n., ex'pur·ga'tor n.