Book Duch. 623. The dispitouse debonaire,
That scorneth many a creature.
I cannot give the exact reference, because Jean de Meun's description of
the various moods of Fortune extends to a portentous length. Chaucer
reproduces the general impression which a perusal of the poem leaves on the
mind. However, take ll. 4860-62 of Le Roman:--
Que miex vaut asses et profite
Fortune _perverse et contraire_
Que la mole et _la debonnaire_.
Surely 'debonaire' in Chaucer is rather French than Latin. And see
_debonaire_ in the E. version of the Romaunt, l. 5412.