Maturing

verb

1. To proceed toward maturity: full development or completion (either of concrete or of abstract things, e.g. plans, judgments, qualities).
2. (of food, especially fruit) To attain maturity, to become mature or ripe.
3. To bring (something) to maturity, full development or completion.
4. To make (something, e.g. fruit) ripe or mature.
5. (of a person) To proceed toward or become mature or full-grown, either physically or psychologically; to gain experience or wisdom with age.