verb/mɛ.tʁi.ze/
to master, have authority over somebody; to dominate, overcome, conquer, control; be master of; to master, to be able to, to know how to accomplish very well
“Maîtriser ses passions.”
Synonyms: asservir, assujettir, commander, dominer, soumettre, brider, calmer, contenir
From maîtrise, which derives from maître.