The word 'unregenerate' is a layered negation built upon the concept of spiritual renewal. Its core, 'generate,' originates from the Latin 'generare,' meaning to beget or produce, which itself stems from the Proto-Indo-European root gene- (to give birth, beget). The prefix 're-' (again) was added to form 'regenerate,' signifying a rebirth or renewal, particularly in a moral or spiritual sense. Finally, the Old English negative prefix 'un-' was attached, creating a term that literally means "not born again," which evolved to describe someone obstinately persisting in a sinful or unrepentant state, resistant to reform or redemption.

Structure: un (not) + re (again) + generate (produce) - un: A prefix of Germanic origin (Old English) meaning "not," used to form negatives. - re: A prefix of Latin origin meaning "again" or "back." - generate: A verb from Latin 'generare' (to beget, produce), from 'genus' (race, kind).