-ancy - definition of -ancy by The Free Dictionary
Condition or quality: buoyancy.
[Latin -antia and -entia; see -ance.]
suffix forming nouns
a variant of -ance, used to indicate condition or quality: expectancy; poignancy; malignancy.
a combination of -ance
used to form nouns denoting state or quality: brilliancy.
[< Latin -antia
+ -ia -y3