The quality of being debonaire; a suave, elegant, and gracious manner or bearing.
From 'debonaire' plus the suffix '-ity' (meaning state or quality), following the Latin pattern of converting adjectives to abstract nouns indicating their essential nature or degree.
English borrowed this 'ity' suffix so heavily from Latin that it became our default way to nominalize adjectives—'suave' becomes 'suavity,' 'urban' becomes 'urbanity,' showing how invasive Latin patterns shaped English.
Complete word intelligence in one call. Free tier — 50 lookups/day.