Accessorius

Part of speech: adjective, noun

Definitions

1. Relating to something that serves as an auxiliary or supplementary component in a specific context
2. Connected to additional or supporting elements that enhance or complement a primary function
3. Pertaining to items or factors that provide supportive assistance or enhancement in various situations

Etymology: In Latin, "accessorius" meant "additional" or "supplementary," coming from "accedere," "to approach or be added to," built from "ad" ("to") and "cedere" ("to go"). The English noun "accessory" first meant something closer to a legal liability: a person who helped in a crime without being the principal offender, an accomplice. English law kept that sense for centuries, and it still survives in phrases like "accessory to murder." The sense of a helpful extra then broadened. Something that is "accessory" is secondary to a main thing but adds to it, which is why the adjective can describe a supporting factor in almost any situation. The fashion meaning, a hat or handbag that completes an outfit, is a later extension of that idea of something added on.

Synonyms: accessory, additional, supplementary, auxiliary, ancillary

Antonyms: primary, main, principal, essential, central