Ancillary

Part of speech: adjective

Pronunciation: /ænˈsɪl.ə.ɹiː/

Definitions

1. Supporting or supplementary to something more important, rather than being central or primary
2. Serving a secondary role that complements the primary focus while enhancing its overall effectiveness and functionality
3. Providing additional support or services that enhance the main operation without being the primary element involved

Etymology: The Latin "ancilla" meant "slave-woman," and "ancillaris" was the adjective built from it, referring to things relating to female slaves. Roman writers used the word for the servile status of women in a household, a meaning that sits uncomfortably far from the modern sense of something that merely supports a main activity. English took the adjective over from Latin, and the sense moved gradually from the servant's social position to the servant's function. A thing that is ancillary is subordinate to a principal one: an ancillary building serves a main structure, and ancillary staff support the core work of an organisation. The shift turned a word describing a person's status into one describing a relationship between tasks or objects, with the original idea of dependence and subordination still present.

Synonyms: auxiliary, supportive, supplementary, accessory, subordinate

Antonyms: primary, main, central