CY

1 of 2

abbreviation

calendar year

-cy

2 of 2

noun suffix

1
: action : practice
mendicancy
2
: rank : office
chaplaincy
3
: body : class
magistracy
4
: state : quality
bankruptcy
often replacing a final -t or -te of the base word
accuracy

Word History

Etymology

Noun suffix

Middle English -cie, from Anglo-French, from Latin -tia, partly from -t- (final stem consonant) + -ia -y, partly from Greek -tia, -teia, from -t- (final stem consonant) + -ia, -eia -y

Browse Nearby Words

Cite this Entry

“CY.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/CY. Accessed 14 Feb. 2026.

Kids Definition

-cy

noun suffix
plural -cies
1
: action : practice
prophecy
piracy
2
: rank : office
captaincy
3
: state : quality
accuracy
bankruptcy
normalcy
Etymology

Noun suffix

derived from Latin -tia "action, quality"

Medical Definition

Cy

abbreviation
cyanogen
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster