Webster's 1913 Dictionary
AMIABILITY
AMIABILITY A `mi *a *bil "i *ty, n.
Defn: The quality of being amiable; amiableness; sweetness of disposition. Every excellency is a degree of amiability. Jer. Taylor.
New American Oxford Dictionary
amiability
a mi a bil i ty |ˌāmēəˈbilitē eɪmiəˈbɪləti | ▶noun the quality of having a friendly and pleasant manner; geniality: his good-natured amiability.
Oxford Dictionary
amiability
ami |abil ¦ity |eɪmɪəˈbɪlɪti | ▶noun [ mass noun ] the quality of having a friendly and pleasant manner; geniality: his good-natured amiability.
Oxford Thesaurus
amiability
amiability noun she was now all amiability: friendliness, affability, cordiality; warmth, warm-heartedness, good nature, niceness, pleasantness, agreeableness, likeability, lovableness, geniality, amicableness, amicability, sociableness; good humour, charm, kindness, kindliness; neighbourliness, hospitality, companionableness, sociability, gregariousness, conviviality, clubbability, clubbableness, personableness; Scottish couthiness; Brit. informal chumminess, mateyness. ANTONYMS unfriendliness.
The Wordsmith Dictionary