pendant

1. Something suspended from something else, especially an ornament or piece of jewelry attached to a necklace or bracelet.
2. A hanging lamp or chandelier.
3. A sculptured ornament suspended from a vaulted Gothic roof or ceiling.
4. One of a matched pair; a companion piece.

[Middle English pendaunt, from Old French pendant, from present participle of pendre, to hang, from Vulgar Latin *pendere, from Latin pendēre.]