Either a nickname from Old French percehaie "pierce hedge" (Old French percer "to pierce, penetrate" and haie "hedge, fence"), perhaps with the sense of someone breaking into an enclosure. Percehaie is the name of one of the sons of the foxes Renart and Hermeline in the medieval French epic Roman de Renart, whose earliest known version is from the 1170s. The surname is older than that, but it may originate in a nickname for the fox as "enclosure piercer", perhaps amounting to "chicken thief". Or a habitational name derived from the name of a Norman town Perci, which was itself perhaps derived from a Gaulish given name that was Latinized as Persius.