curer

to clean by scrubbing, scraping and removing (e.g. a drain, a pipe, a canal, a stable, ...); to clean oneself by scrubbing, scraping and removing (e.g. one's nails, teeth, ...); (transitive) to clear out (to make empty, to remove)

“Se curer le nez.” — To pick one's nose.

Inherited from Old French curer, borrowed from Latin cūrāre.