Mehujael in the Bible Encyclopedia - ISBE
me-hu'-ja-el (mechuya'el, mechiya'el, "smitten of God"): A
descendant of Cain through Enoch and Irad (Gen 4:18). The list
in Gen 5:12 ff is a working-over of the same material of
genealogy by another hand at a different date of spelling
(compare spelling of Chaucer and that of today). In that ease,
Mehalalel would be the correspondent name to Mehujael (see
Expository Times, X, 353).