Source : Webster's Revised Unabridged Dictionary (1913)

Bonhomie \Bon`ho*mie"\, Bonhommie \Bon`hom*mie"\, n. [F.]
   good nature; pleasant and easy manner.

Source : WordNet®

bonhomie
     n : a disposition to be friendly and approachable (easy to talk
         to) [syn: {affability}, {affableness}, {amiability}, {amiableness},
          {geniality}]