Meaning of -acy

-acy

Pronunciation: [key]
  1. a suffix of nouns of quality, state, office, etc., many of which accompany adjectives in -acious or nouns or adjectives in -ate: fallacy; papacy; legacy; delicacy; piracy.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.