purge
verbto remove people from an organization, often violently, because their opinions or activities are unacceptable to the people in power 清除,清洗(組織中的異己分子) - (formal)
to make yourself/somebody/something pure, healthy or clean by getting rid of bad thoughts or feelings 淨化(心靈、風氣等);滌蕩(污穢)
Word OriginMiddle English (in the legal sense ‘clear oneself of a charge’): from Old French purgier, from Latin purgare ‘purify’, from purus ‘pure’.