Where does “trappiste” come from?

trappiste (French) comes from French trappe, from Middle French trappe, from Old French trape, from Medieval Latin trappa, from Frankish trappa, from Proto-Germanic trap-, from Proto-Indo-European dreb-, from Proto-Indo-European der- — to split, to separate; to tear, to crack, to...

trappiste (French): Trappist; Of or from Trappes; Trappist beer