purge

Concise Oxford English Dictionary © 2008 Oxford University Press:
purge/pɜːʤ/

▶verb

• 1 rid of an unwanted feeling or condition.

• 2 remove (a group of people considered undesirable) from an organization or place.

• 3 remove by a cleansing process.

• 4 (often as noun purging) evacuate the bowels, especially as a result of taking a laxative.

• 5 Law atone for or wipe out (contempt of court).

▶noun an act of purging people from an organization or place.

– derivatives
purger noun.

– origin ME: from OFr. purgier, from L. purgare ‘purify’, from purus ‘pure’.