unexpire

Etymology

From un- +‎ expire.

Verb

unexpire (third-person singular simple present unexpires, present participle unexpiring, simple past and past participle unexpired)

1. (transitive, computing) To cause (a password or other setting) no longer to be expired; to restore as valid.
   • 2013, Darl Kuhn, Pro Oracle Database 12c Administration, page 129:

     To unexpire a password, you simply need to change it.