Smith's Bible Dictionary (1863)
one of the priests who returned with Zerubbabel, (Nehemiah 12:5) elsewhere (ver. (Nehemiah 12:17)) called Moadiah.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
MAADI'AH, a priest who returned with Zerubbabel, Neh 12:5; is called Moadiah in v. 2 Sam 21:17.
Hitchcock's Bible Names (1869)
pleasantness; the testimony of the Lord