ETYM Old Eng. juel, jowel, Old Fren. jouel, juel, joiel, French joyau, dim. of Old Fren. joie joy, jewel, French joie joy. Related to Joy.
(Homonym: joule).
1. A person who is a brilliant and precious as a piece of jewelry; SYN. gem.
2. A precious or semiprecious stone incorporated into a piece of jewelry; SYN. gem, precious stone.

To adorn with jewels.