Where does “mus” come from?

mus (Basque) comes from Basque mux, from French mouche, from Middle French mousche, from Old French mousche, from Latin musca, from Ancient Greek μυῖα, from Proto-Indo-European mūs- — fly, stinging fly, gnat; moist, damp; swamp,...

mus (Basque): A traditional Basque card game