Meaning of -IBILITY in English

-IBILITY

I. -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

II. -ibility /əbɪləti, ɪbɪləti/ BrE AmE suffix [in nouns]

another form of the suffix ↑ -ability :

invincibility

flexibility

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.