Verb: to restore the hymen; a few decades of celibacy is
required to "revirginate." It can be done metaphorically, if
not biologically. Once revirginated, a woman is able to
"feel like a virgin" again.

Noun: revirginated: A desirable state of retrieved innocence acquired by abstinence from sexual relations, intoxicants of all kinds, and wholesome thinking.

to regain one's virginity from not having sex (or fucking) with someone else for a long time