語ご幹かん形けい成せい母ぼ音おん

noun

thematic vowel; thematic

Linguistics term for a vowel inserted between a stem and an inflectional ending, as in Indo-European languages. Not a word used in everyday Japanese.

• ラテン語ごの動どう詞しでは、語ご幹かん形けい成せい母ぼ音おんが活かつ用ようの種しゅ類るいを決きめる。

  In Latin verbs, the thematic vowel determines the conjugation type.