Adam and Eve had another son, Seth

25 Adam continued to ◄have sex/sleep► with [EUP] his wife, and she became pregnant and gave birth to another son, whom she named Seth, which sounds like the Hebrew word that means ‘given’, because, she said, “God has given me another child to take the place of Abel, since Cain killed him.” 26 When Seth grew up, he became the father of a son whom he named Enosh. About that time people began to worship Yahweh again.