The Collaborative International Dictionary
Debonairity
Debonairity \Deb`o*nair"i*ty\, n. [OF. debonairet['e], F.
d['e]bonnairet['e].]
Debonairness. [Obs.]
--Chaucer.
Wiktionary
debonairity
n. (context obsolete English) The quality of being debonair; debonair character, graciousness.