classical na-adjective inflection
Technical term in Japanese grammar. Refers to the classical inflection pattern of na-adjectives formed by contraction of the particle に with the classical verb あり (あり). Used in descriptions of classical Japanese grammar.
In classical grammar, the ナリ活用 of adjectival nouns inflects like 静かなり.
ナリ活用 is explained as a contracted form of にあり.