As nouns the difference between accessory and paraphernalia
is that accessory
is something that belongs to part of another main thing; something additional and subordinate, an attachment while paraphernalia
is (pluralonly) miscellaneous items, especially the set of equipment required for a particular activity; stuff.
As an adjective accessory
is having a secondary, supplementary or subordinate function by accompanying as a subordinate; aiding in a secondary way; being additional; being connected as an incident or subordinate to a principal; contributing or being contributory said of persons and things, and, when of persons, usually in a bad sense; as, he was accessory'' to the riot; ''accessory
sounds in music.