Meaning of -ACY in English

-ACY

-acy BrE AmE əs i —Words with this suffix are stressed in the same way as the corresponding form with -ate , if there is one (le ˈ gitimacy). Otherwise, the stem keeps its usual stress, though sometimes with a vowel change (su ˈ preme — su ˈ premacy). See also -cracy.

Longman Pronunciation English Dictionary.      Английский словарь произношений Longman.