maharani
noun
ma·ha·ra·ni ˌmä-hə-ˈrä-nē 
variants or maharanee
1
: the wife of a maharaja
2
: a Hindu princess ranking above a rani
Word History
Etymology
Hindi & Urdu mahārānī, from mahā great (from Sanskrit mahat) + rānī rani
First Known Use
circa 1855, in the meaning defined at sense 1