[1] : The Collaborative International Dictionary of English v.0.48

gentility \gentil"ity\, n. l. gentilitas the relationship of
   those who belong to the same clan, also, heathenism: cf. f.
   gentilit'e heathenism. see gentile.
   1913 webster
   1. good extraction; dignity of birth. --macaulay.
      1913 webster

            he . . . mines my gentility with my education.
                                                  --shak.
      1913 webster

   2. the quality or qualities appropriate to those who are well
      born, as self-respect, dignity, courage, courtesy,
      politeness of manner, a graceful and easy mien and
      behavior, etc.; good breeding.
      1913 webster

   3. the class in society who are, or are expected to be,
      genteel; the gentry. r. --sir j. davies.
      1913 webster

   4. paganism; heathenism. obs. --hooker.
      1913 webster
see also:
gentile 

[2] : WordNet (r) 2.0

gentility
     n : elegance by virtue of fineness of manner and expression
         syn: breeding, genteelness
see also:
breeding genteelness 

[3] : Moby Thesaurus II by Grady Ward, 1.0

49 moby thesaurus words for "gentility":
   ancestry, appropriateness, aristocracy, aristocraticalness,
   becomingness, birth, blood, blue blood, breeding, civility,
   cultivation, culture, decency, decorousness, decorum, distinction,
   elegance, elite, felicity, fitness, fittingness, flower,
   genteelness, gentlemanlikeness, gentlemanliness, gentleness,
   gentry, good breeding, happiness, honorable descent, ladylikeness,
   meetness, nobility, noble birth, nobleness, polish, properness,
   propriety, quality, rank, refinement, rightness, royalty,
   seemliness, society, suitability, upper class, upper crust,
   urbanity

Gentility >> G Words
Gentility, definition of term: Gentility
gentility_pag1.html