'Younger' in the Bible

And Othniel the son of Kenaz, Caleb's younger brother, took it: and he gave him Achsah his daughter to wife.

And when the children of Israel cried unto the LORD, the LORD raised up a deliverer to the children of Israel, who delivered them, even Othniel the son of Kenaz, Caleb's younger brother.

And her father said, I verily thought that thou hadst utterly hated her; therefore I gave her to thy companion: is not her younger sister fairer than she? take her, I pray thee, instead of her.