Rajkumar
/ˈrɑː(d)ʒkʊˌmɑː/(also Raj Kumar, Raj-Kumar)
noun
(A) In North India: a member of a class of landowners and agriculturalists. (b) In India: a person of princely rank; a prince; also as a title.
Origin
Late 18th century. From Sanskrit rājakumāra king's son, prince (also with vernacular pronunciation rājkumār) from rāja-, combining form of rājan king + kumāra male child, prince.