The Collaborative International Dictionary of English v.0.48:
Disdain \Dis*dain"\ (?; 277), v. t. [imp. & p. p. Disdained;
p. pr. & vb. n. Disdaining.] [OE. disdainen, desdainen, OF.
desdeigner, desdaigner, F. d['e]daigner; des- (L. dis-) +
daigner to deign, fr. L. dignari to deem worthy. See
1. To think unworthy; to deem unsuitable or unbecoming; as,
to disdain to do a mean act.
Disdaining . . . that any should bear the armor of
the best knight living. --Sir P.
2. To reject as unworthy of one's self, or as not deserving
one's notice; to look with scorn upon; to scorn, as base
acts, character, etc.
When the Philistine . . . saw David, he disdained
him; for he was but a youth. --1 Sam. xvii.
'T is great, 't is manly to disdain disguise.
Syn: To contemn; despise; scorn. See Contemn.