-ability /əbɪləti, əbɪlɪti/ BrE AmE ( also -ibility ) suffix
[ Language: Old French ; Origin: -abilité , from Latin -abilitas , from -abilis ; ⇨ ↑ -able ]
makes nouns from adjectives ending in ↑ -able and ↑ -ible :
manageability
-ability /əbɪləti, əbɪlɪti/ BrE AmE ( also -ibility ) suffix
[ Language: Old French ; Origin: -abilité , from Latin -abilitas , from -abilis ; ⇨ ↑ -able ]
makes nouns from adjectives ending in ↑ -able and ↑ -ible :
manageability
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012