English
purger
From purge + -er.
A compound of purge + -er
Latin pūrgō ‘to make pure, to cleanse’
Old French purgier
Middle English purgen ‘to purge or cleanse the body’
English purge
Today it means
noun One who, or that which, purges or cleanses.
Language periods are conventional ranges, not dates for this word.
Etymograph / purger