"peruke, artificial imitation of a head of hair," worn as a fashionable accessory or as part of a professional costume, 1520s, perwyke, a popular corruption of perruck, from Middle French perruque (see peruke), evidently by simulation of the French pronunciation and the influence of peri-.
peristalsis
peristaltic
peristyle
peritoneum
peritonitis
periwig
periwinkle
perjure
perjury
perk
perky