原げん形けい

noun

original form; base form

Refers to the original shape or form of something before changes or modifications. Used in both concrete and abstract contexts.

• この建たて物ものは原げん形けいをとどめていない。

  This building no longer retains its original form.

• 動どう詞しの原げん形けいを辞じ書しょで調しらべる。

  Look up the base form of the verb in the dictionary.