Where it comes from
kalev (כָּלֵב), possibly 'dog' or 'wholehearted, faithful'
Also known as
Caleb (used largely unchanged across European languages)
Fun Fact
Caleb was one of only two Israelite spies, alongside Joshua, who gave a faithful report after scouting the Promised Land, which the Bible credits as the reason he alone of his generation was allowed to enter it.