Genesis 4:15-16

4:15

if <03651> [Therefore.]

seven <07659> [sevenfold.]

put ... special mark <07760 0226> [set a mark, etc.]

Or, rather, "gave a sign or token to Cain, that those who found him should not kill him."

4:16

out <03318> [went.]

Nod <05113> [Nod.]

So called from {nad,} "a vagabond," which Cain is termed in ver. 12.