'Younger' in the Bible

And Othniel, the son of Kenaz, Caleb's younger brother, took it; so he gave him his daughter Achsah for his wife.

And when the children of Israel made prayer to the Lord, he gave them a saviour, Othniel, the son of Kenaz, Caleb's younger brother.

And her father said, It seemed to me that you had only hate for her; so I gave her to your friend: but is not her younger sister fairer than she? so please take her in place of the other.