lavalliere vs pendent

lavalliere and pendent both are nouns.

Word	Noun	Adjective	Verb	Adverb
lavalliere	Yes	No	No	No
pendent	Yes	Yes	No	No

As nouns, pendent is a hypernym of lavalliere; that is, pendent is a word with a broader meaning than lavalliere:

lavalliere: jeweled pendant worn on a chain around the neck
pendent: an adornment that hangs from a piece of jewelry (necklace or earring)

Other hypernyms of lavalliere include pendant.

lavalliere (noun)	pendent (noun)
jeweled pendant worn on a chain around the neck	branched lighting fixture; often ornate; hangs from the ceiling
	an adornment that hangs from a piece of jewelry (necklace or earring)

lavalliere (adjective)	pendent (adjective)
	held from above and hanging down