Adam] RV 'the man.' Cain] Heb. Kayin, 'a spear,' in Arabic 'smith' (see Genesis 4:22). Here connected with Kanah, 'gotten,' or 'acquired.' The Hebrews attached a great importance to names, which were mostly regarded as descriptive of some characteristic in the thing or person on whom they were bestowed. In the giving of a name, or in explaining one already given, strict regard was not paid to the actual derivation of the word. It was enough if the name resembled in any way a word which might be taken as applicable to the subject: cp. Abel, Noah (Genesis 5:29), Babel (Genesis 11:9), and the names of Jacob's sons in Genesis 29:30. From the Lord] RV 'with the help of the Lord.'
Related Commentaries of Genesis 4:1
Genesis 4:1
1 And Adam knew Eve his wife; and she conceived, and bare Cain,a and said, I have gotten a man from the LORD.