|Int. Standard Bible Encyclopedia|
man'-child (American Standard Revised Version; "man child," the English Revised Version; not in the King James Version; mashtin beqir): The expression is used with the meaning of "male," but is found only in the description of the extermination of a whole family, where it is employed to express every male descendant of any age. It occurs in 1 Samuel 25:22, 34 1 Kings 14:10; 1 Kings 16:11; 1 Kings 21:21; 2 Kings 9:8.
Manchild (1 Occurrence)
Genesis 4:1 And the man knew Eve his wife; and she conceived and bore Cain, and said: 'I have gotten a man with the help of the LORD.' (See NAS)