The Collaborative International Dictionary
Disculpated
Disculpate \Dis*cul"pate\, v. t. [imp. & p. p. Disculpated; p. pr. & vb. n. Disculpating.] [LL. disculpatus, p. p. of disculpare to disculpate; dis- + L. culpare to blame, culpa fault.] To free from blame or the imputation of a fault; to exculpate.
I almost fear you think I begged it, but I can
disculpate myself.
--Walpole.
Wiktionary
disculpated
vb. (en-past of: disculpate)