inflect

verb4

1. •
   To cause to curve inwards.
2. •
   To vary the form of a word to express tense, gender, number, mood, etc.
3. •
   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.
4. •
   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.