endoglossic

 
Pronunciation: /ˌɛndə(ʊ)ˈɡlɒsɪk/

adjective

Linguistics
  • denoting or relating to an indigenous language that is used as the first or official language in a country or community. Compare with exoglossic.

Origin:

1980s: from endo-, Greek glōssa 'language, tongue', and -ic