From yada'; knowing; Jaddua, the name of two Israelites -- Jaddua.
see HEBREW yada'
H3037. Yaddua
יַדוּעַ proper name, masculine 1. a chief of the people, one of those sealed Nehemiah 10:22 ᵐ5L Ιεδδαυα.
2 a priest, probably the high priest in time of Alexander the Great Nehemiah 12:11, 22 ᵐ5 Ιαδου, ᵐ5L Ιεδδου (whence LagBN 113 reads יִדּוּעַ).