原げん拠きょ

noun

grounds; basis; foundation

Refers to the underlying basis or grounds for an argument, theory, or claim. Often used in formal or academic contexts.

• 彼かれの主しゅ張ちょうには確たしかな原げん拠きょがある。

  His argument has a solid basis.

• この理り論ろんの原げん拠きょは何なんですか。

  What is the foundation of this theory?