English Theasurus that shows all the ways the English word is translated from the original Greek and Hebrew.
English Theasurus from the Hebrew and Greek Strong's Dictionary
forty 0705 -- /arba\iym -- {-forty}.
forty 5062 ** tessarakonta ** {forty}.
forty 5063 ** tessarakontaetes ** (+ full, of) {forty} years (old).
forty 7239 ribbow -- -- great things, ten ([eight]-een, [{for]-ty}, + sixscore, +threescore, X twenty, [twen]-ty) thousand.