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In all the world, Frosia (Frosia , Фрося , فروسيا) is a rare female first name. The first name Frosia is characteristic of Georgia, where it is quite a rare principally female, but very seldom masculine name, Kazakhstan, where it is a rare girly name, and Tanzania, where it is a very rare girly name. Measured by absolute frequency, it is the most numerous in Georgia, Russia, and Tanzania. Very seldom, Frosia is the last name as well as the forename.