Boyd’s Bible Dictionary:
(middle). Son of Japheth, and progenitor of the Medes (Gen. 10:2).
Concise Bible Dictionary:
Son of Japheth and progenitor of the MEDES (Gen. 10:2; 1 Chron. 1:5). The Hebrew for Madai and Medes is the same.
Strong’s Dictionary of Hebrew Words:
Meaning:
(Aramaic) corresponding to 4074