Definition from Wiktionary, the free dictionary
From Hebrew קַיִן (Káyin, “craftsman”).
Proper noun 
- (biblical) The eldest son of Adam and Eve as described in Genesis. (see Cain and Abel).
- (rare) A male given name
- 1611 — King James Version of the Bible, Genesis 4:8
- And Cain talked with Abel his brother: and it came to pass, when they were in the field, that Cain rose up against Abel his brother, and slew him.
son of Adam and Eve