"to grow ripe," 1560s, from ripe + -en (1). Related: Ripened; ripening. Earlier, the verb was simply ripe, from late Old English ripian, from the adjective.
The sun ripens the fruit
The plums ripen in July
riotous
rip
Rip Van Winkle
riparian
ripe
ripen
rip-off
riposte
ripper
ripping
ripple
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