Hin·di 
(hĭndē)
(hĭndē)n.
1. A group of vernacular Indic dialects spoken in northern India.
2. The literary and official language of northern India that is based on these dialects. It is written in Devanagari and uses Sanskrit as a resource language.
[Hindi Hindī, from Hind, India, from Persian, from Old Persian Hinduš, Sind, from Sanskrit sindhuḥ, river.]
Hindi adj.