ripen
/ˈɹaɪpən/
verb
Meaning
To grow ripe; to become mature (said of grain, fruit, flowers etc.)
"Grapes ripen in the sun."
To approach or come to perfection.
To cause to mature; to make ripe
"The warm sun ripened the corn."
To mature; to fit or prepare; to bring to perfection
"ripen the judgment"