A man living at the time of Exile and Return, only mentioned at Ezr.10.34 § Maadai = "ornament of Jehovah" an exile of the sons of Bani who put away a foreign wife in the time of Ezra
STRONG'S WORD STUDY
H4572 — מַעֲדַי
ma.a.day · Maadai · Hebrew/Aramaic