purge

an act of removing by cleansing; ridding of sediment or other undesired elements

rid of impurities

“purge the water”

the act of clearing yourself (or another) from some stigma or charge

rinse, clean, or empty with a liquid

“purge the old gas tank”

eject the contents of the stomach through the mouth

“He purged continuously”

make pure or free from sin or guilt

an abrupt or sudden removal of a person or group from an organization or place

“he died in a purge by Stalin”

clear of a charge

excrete or evacuate (someone's bowels or body)

“The doctor decided that the patient must be purged”

oust politically

“Deng Xiao Ping was purged several times throughout his lifetime”