expurgate /eksˈpûr-gāt, also -pûrˈ/

1. To purge out or make pure
2. To revise (a book, etc) by removing anything supposed to be offensive, harmful or erroneous

expurgāˈtion noun

1. The act of expurgating or purifying
2. The removal of anything hurtful or evil
3. Bowdlerizing
4. Exculpation

expurgator /eksˈpûr-gā-tər or eks-pûrˈgə-tər/ noun

Someone who expurgates or purifies

expurgatoˈrial /-gə-töˈri-əl/ or expurˈgatory adjective

1. Relating to expurgation
2. Tending to expurgate or purify

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