τεσσαρακονταετής G5063
tessarakontaetḗs · tes-sar-ak-on-tah-et-ace' · Adjective
from τεσσαράκοντα and ἔτος; of forty years of age:--(+ full, of) forty years (old).
2 Occurrences in the King James Bible
Acts 7:23And when he was full forty years old, it came into his heart to visit his brethren the children of Israel.
Acts 13:18And about the time of forty years suffered he their manners in the wilderness.