-acy

-a·cy
Australia, New Zealand, UK/-ə.siː/Canada, US, Scotland/-ə.si/India/-a.siː/

suffix

Denoting quality, state, condition.

“prime + -acy → primacy”

OriginLatin -ācia →
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Meanings

suffix
  1. Denoting quality, state, condition.

    prime + -acy → primacy

    3 more examples

    advocate + -acy → advocacy

    conspire + -acy → conspiracy

    supreme + -acy → supremacy

Origin

  1. Latin-ātia
  2. Latin-ācia
  3. English-acy

From Latin -ācia or ultimately Latin -ātia. Also a suffixal construction from -ate + -cy.

More words from Latin

Full word history & related roots →
Cite this entry
APA

-acy. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/-acy

MLA

“-acy.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/-acy. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “-acy,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/-acy.

Source: -acy on Wiktionary, CC BY-SA 4.0.