The Collaborative International Dictionary
Czarowitz
Czarowitz \Czar"o*witz\ (z?r"?-w?ts or t??r"?-v?ch), n.; pl. Czarowitzes (-?z). [Russ. tsar['e]vich'.] The title of the eldest son of the czar of Russia.
Wiktionary
czarowitz
n. (archaic form of tsarevich English)