Definitions

1. adjective

relating to or characteristic of the Japhethites, a biblical tribe descended from Japheth, or the Japhetic languages, a hypothetical group of languages derived from the Proto-Indo-European language family

“The scholar specialized in Japhetic languages and their historical development.”

2. noun

a hypothetical group of languages derived from the Proto-Indo-European language family

“The linguist argued that the Japhetic languages shared similarities with ancient Greek and Latin.”