The Collaborative International Dictionary
schah
Shah \Shah\ (sh[aum]), n. [Per. sh[=a]h a king, sovereign, prince. Cf. Checkmate, Chess, Pasha.] A former title of the supreme ruler in certain Eastern countries, especially Persia and Iran. [Written also schah.]
Shah Nameh. [Per., Book of Kings.] A celebrated historical
poem written by Firdousi, being the most ancient in the
modern Persian language.
--Brande & C.
Wiktionary
schah
n. (archaic form of shah English)