Soft-spoken And Faultless, Kasia Is A Graceful Variation Of The Feminine Name Katarzyna. Polish In Origin, Kasia Comes From The Ancient Greek Katharós, Which Means Simply "pure." Its An Attractive Appellation That Has Sparked A Litany Of Variations Across Europe, Each One An Ode To A Flawless Child. Catherine Is Perhaps Its Most Popular Iteration, Named For Saints, Queens, And Reigning Empresses Alike.