trilingual

 
Pronunciation: /trʌɪˈlɪŋgw(ə)l/

adjective

  • speaking three languages fluently.
  • (of a text or an activity) written or conducted in three languages: CNN have begun offering a trilingual entertainment service

Derivatives

trilingualism

noun

Origin:

mid 19th century: from tri- 'three' + Latin lingua 'tongue' + -al