locket
/ˈlɒkɪt
/noun
1A small ornamental case, typically made of gold or silver, worn round a person’s neck on a chain and used to hold things of sentimental value, such as a photograph.A gold chain with a locket containing a picture of her late husband hung around her neck as it did every day....
- He put his arm around her and let his fingers play with the gold chain of her locket.
- Also on display are stringed natural pearls and chains with lockets that have American diamonds laid on silver plated with gold.
2A metal plate or band on a scabbard.
Origin
Late Middle English (in sense 2): from Old French locquet, diminutive of loc 'latch, lock', of Germanic origin; related to lock1. sense 1 dates from the late 17th century.