1429 (P.R.O.: C 54/280) m. 24v Predictus Ricardus..soluerit..annuatim..thrauas vulgariter nuncupatas Petircorne.
1736 F. Drake i. vii. 332 One thrave of corn out of every carucate of land..in the bishopric of York; which to this day is called Peter corn.