accessory vs trimmings

accessory and trimmings both are nouns.

Word	Noun	Adjective	Verb	Adverb
accessory	Yes	Yes	No	No
trimmings	Yes	No	No	No

As nouns, trimmings is a hyponym of accessory; that is, trimmings is a word with a more specific, narrower meaning than accessory:

accessory: a supplementary component that improves capability
trimmings: the accessories that normally accompany (something or some activity)

Other hyponyms of accessory include auto accessory, computer accessory, fitting, fixings.

accessory (noun)	trimmings (noun)
a supplementary component that improves capability	the accessories that normally accompany (something or some activity)
clothing that is worn or carried, but not part of your main clothing
someone who helps another person commit a crime

accessory (adjective)	trimmings (adjective)
furnishing added support
aiding and abetting in a crime