母ぼ語ご

noun

mother tongue; native language

Refers to the language a person learns from birth, typically from their mother or family. Common in everyday and educational contexts.

• 彼かの女じょの母ぼ語ごは日本にほん語ごです。

  Her native language is Japanese.

• 母ぼ語ごを忘わすれないように、毎まい日にち話はなす練れん習しゅうをしている。

  I practice speaking every day so I don't forget my mother tongue.

noun

protolanguage; parent language

Linguistics term for a reconstructed ancestral language from which later languages are derived. Often contrasted with 祖語 (そご), which is more common in this sense.

See also: 祖語 (そご)

• 言げん語ご学がくでは、母ぼ語ごは祖そ語ごとも呼よばれる。

  In linguistics, a protolanguage is also called a parent language.