Webster’s Revised Unabridged Dictionary · 1913
Parde
Par·de′ (pär·dē′ or pär′dē), Par·die′ (pär·dē′), adv. or interj. [F. pardi, for par Dieu by God.] Certainly; surely; truly; verily; — originally an oath. [Written also pardee, pardieux, perdie, etc.] [Obs.]
He was, parde, an old fellow of yours. Chaucer.