Irad
The name Irad means “wild ass; heap of empire; dragon”.
Easton's Bible Dictionary 1897
Runner; wild ass, one of the antediluvian patriarchs, the father of Mehujael (Gen. 4:18), and grandson of Cain.
Smith's Bible Dictionary 1863
(fleet), son of Enoch; grandson of Cain, and father of Mehujael. (Genesis 4:18)
International Standard Bible Encyclopedia 1915
i'-rad (`iradh; Septuagint Gaidad): Grandson of Cain and son of Enoch (Ge 4:18).