peculiarity vs oddment

peculiarity and oddment both are nouns.

Word	Noun	Adjective	Verb	Adverb
peculiarity	Yes	No	No	No
oddment	Yes	No	No	No

As nouns, peculiarity and oddment are synonyms defined as:

peculiarity and oddment: something unusual -- perhaps worthy of collecting

Other synonyms of peculiarity include curio, curiosity, oddity, rarity.

peculiarity (noun)	oddment (noun)
something unusual -- perhaps worthy of collecting	a piece of cloth that is left over after the rest has been used or sold
a distinguishing trait	something unusual -- perhaps worthy of collecting
an odd or unusual characteristic