Meaning

noun the period of time in your life after your physical growth has stopped and you are fully developed

noun the state (and responsibilities) of a person who has attained maturity

originEtymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *h₂el- Proto-Indo-European *-yeti Proto-Indo-European *-éyeti Proto-Indo-European *h₂oléyeti Proto-Italic *oleō Latin *oleō Proto-Indo-European *-sḱéti Proto-Italic *-skō Latin -sco Latin olēscō Latin adolēscō Latin adultuslbor. French adultebor. English adult Proto-Indo-European *keyt-der.…

Etymology from Wiktionary, CC BY-SA 3.0