α. Middle English par fai, Middle English parfai, Middle English par fay, Middle English par faye, Middle English par fey, Middle English parfey, Middle English parfeye, Middle English parfoy, Middle English–1500s parfay.
β. Middle English perfey, Middle English perfeye, Middle English perfoy, Middle English profay (transmission error), Middle English–1500s (1800s archaic) perfay, 1500s perfaye, 1500s per fey; Scottish pre-1700 perfai, pre-1700 perfaye, pre-1700 perfey, pre-1700 purfeye, pre-1700 (1800s archaic) perfay, 1800s per fay (archaic); N.E.D. (1905) also records a form late Middle English per fey.