a suffix of nouns of quality, state, office, etc., many of which accompany adjectives ending in -acious or nouns or adjectives ending in -ate:fallacy; papacy; legacy; delicacy; piracy.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use -acy in a sentence
The village of Acy, high on the hill above the road to Venizel, was the richest hunting-ground.Adventures of a Despatch Rider | W. H. L. Watson
I should like to devote a generous percentage to the use of the Confed'acy.The Debatable Land | Arthur Colton
At this moment a loud booming of cannon is heard in the direction of May-en-Multien, Acy.Beyond the Marne | Henriette Cuvru-Magot