日にち琉りゅう祖そ語ご

noun

Proto-Japonic; Proto-Japanese-Ryukyuan

Technical term in historical linguistics referring to the reconstructed common ancestor of Japanese and the Ryukyuan languages.

• 日にち琉りゅう祖そ語ごの研けん究きゅうは、日本にほん語ごと琉りゅう球きゅう諸しょ語ごの系けい統とう関かん係けいを明あきらかにする。

  Research on Proto-Japonic clarifies the genetic relationship between Japanese and the Ryukyuan languages.