purge

The story

1. Latin · derived frompūrgō“to make pure, to cleanse”
2. Old French · derived frompurgier
3. Middle English · derived frompurgen
4. English todaypurge

From Middle English purgen, from Old French purgier, from Latin pūrgō (“to make pure, to cleanse”), from pūrus (“clean, pure”) + agō (“to make, to do”). The slang sense derived via the 2013 film The Purge.