Hindi vs Hindu

Hindi

adj
  • In or relating to the Hindi language. 

name
  • All the lects in the Belt, which also includes lects that do not belong to the Central Zone of Indo-Aryan languages. 

  • Modern Standard Hindi, a standardized and Sanskritized version of the Hindustani language. 

  • The Central Zone of Indo-Aryan languages. These are also spoken in Fiji, Guyana and as a second language by Indians in many other countries. 

  • A historical name for a dialect spoken in Delhi, now known as Urdu, or Hindustani. 

Hindu

adj
  • Of, or relating to Hinduism, or to Hindus and their culture. 

noun
  • A person adhering to the Hindu religion (Hinduism). 

How often have the words Hindi and Hindu occurred in a corpus of books? (source: Google Ngram Viewer )