rajah (n.)youdaoicibaDictYouDict[rajah 词源字典]
also raja, "king or prince in India," 1550s, from Hindi, from Sanskrit rajan "king," related to raj "kingdom, kingship," rajati "he rules," and cognate with Latin rex, Old Irish rig "king" (see regal). Related: Rajput, "member of the ruling caste in northern India" (1590s), from Sanskrit rajaputrah "prince," literally "king's son," from putrah "son, boy" (see puerile).[rajah etymology, rajah origin, 英语词源]