Expurgate

[ek-sper-geyt] /ˈɛk spərˌgeɪt/

verb (used with object), expurgated, expurgating.
1.
to amend by removing words, passages, etc., deemed offensive or objectionable:
Most children read an expurgated version of Grimms’ fairy tales.
2.
to purge or cleanse of moral offensiveness.
/ˈɛkspəˌɡeɪt/
verb
1.
(transitive) to amend (a book, text, etc) by removing (obscene or offensive sections)
v.

1620s, back-formation from expurgation or from Latin expurgatus, past participle of expurgare “to cleanse out, purge, purify” (see expurgation). Related: Expurgated; expurgating. The earlier verb was simply expurge (late 15c.), from Middle French expurger.
expurgate [(ek-spuhr-gayt)]

To clean up, remove impurities. An expurgated edition of a book has had offensive words or descriptions changed or removed.