This root is found in words like:
* Brachial: relating to the arm
* Brachiate: to climb by using arms and branches
* Brachiopod: a marine animal with a shell that is hinged like an arm
* Brachialgia: pain in the arm
* Brachial plexus: a network of nerves that innervates the arm
It's interesting to note that the word "arm" itself is of Germanic origin, not Latin.