n. & v. (US dishonor)
n. 1 a state of shame or disgrace; discredit. 2 something that causes dishonour (a dishonour to his profession).
v.tr. 1 treat without honour or respect. 2 disgrace (dishonoured his name). 3 refuse to accept or pay (a cheque or a bill of exchange). 4 archaic violate the chastity of; rape.
[ ME f. OF deshonor, deshonorer f. med.L dishonorare (as DIS-, HONOUR) ]