Ātman is in the language Sanskrit.
Ātman ( [ ˈɑːtmən ] ) is a Sanskrit word that means inner self or soul . Sanskrit ( ; Devanagari : संस्कृतम् ; IPA : [ sə̃skr̩t̪əm ] ) is the primary liturgical language of Hinduism ; a philosophical language of Hinduism , Buddhism , and Jainism ; and a literary language and lingua franca of ancient and medieval South Asia .