inflect

verb

1. (transitive)To cause to curve inwards.
2. (transitive)To change the tone or pitch of the voice when speaking or singing.

   “The actress has a great skill of being able to inflect her voice to any situation.”

3. (transitive)To vary the form of a word to express tense, gender, number, mood, etc.
4. (intransitive)To be varied in the form to express tense, gender, number, mood, etc.

   “In Latin, adjectives and nouns inflect a lot, but inflection is minimally found in Modern English.”