muscovite

muscovite · noun¹

In 1850 from Muscovy glass + -ite, from the province Muscovy in Russia. Named by James Dwight Dana.

Muscovite · noun, adjective²

1. Latin · derived fromMoscovita“resident of Moscow or Muscovy, Russian”
2. English todayMuscovite

1535. From Latin Moscovita (“resident of Moscow or Muscovy, Russian”), also Muscovita, Moschovita, from Moscovia or Muscovia (“Muscovy”) + -ita.