Shah is the Persian and Sanskrit term for a monarch and used by the former rulers of Persia (present-day Iran) as well as the rulers of the Sassanian Empire. Also used by ottoman turks to entitle a great hero or emperor. Probably related to russian Tzar. The English words check, checkmate and chess are all derived from shah.
... the power of the Canadian Parliament and provincial legislatures in Canada when it was adopted by the British Parliament in 1982 (though as part of the Canada Act (UK) ...