Regenerate
late Middle English (as an adjective): from Latin regeneratus ‘created again’, past participle of regenerare, from re- ‘again’ + generare ‘create’. The verb dates from the mid 16th century.
wiktionary
From Latin regenerātus, perfect participle of regenerō.
etymonline
regenerate (adj.)
"reborn, reproduced, restored," mid-15c., from Latin regeneratus, past participle of regenerare "bring forth again" (see regeneration). Especially in theology, "changed from a natural to a spiritual state."
regenerate (v.)
"generate or produce anew," 1550s, a back-formation from regeneration or else from Latin regeneratus, past participle of regenerare "bring forth again" (see regeneration). Originally theological, "cause to be born again, cause to become a Christian;" of body parts from 1590s. Related: Regenerated; regenerating; regenerable. Replaced earlier regeneren (c. 1400), from Old French regenerer.