α. Old English on cneow, Old English on cneowum, early Middle English on cneowe, Middle English on kneoes, Middle English on knes, Middle English on knys.
β. early Middle English o cneon, early Middle English o cnewwe ( Ormulum), early Middle English o cnewwess ( Ormulum), early Middle English o knes, early Middle English oknon.
γ. early Middle English acne, early Middle English acneon, early Middle English acneon, early Middle English a cneouwen, early Middle English a cneowan, early Middle English a cneowe, early Middle English a cnouwe, early Middle English a cnowe, early Middle English akne, early Middle English a kne, early Middle English aknen, early Middle English a knen, early Middle English akneo, early Middle English a-kneo, early Middle English akneon, Middle English a knawe, Middle English a knee, Middle English a-knes, Middle English aknes, Middle English akneu, Middle English a-knewes, Middle English a knewes, Middle English a know, Middle English a-knowe, Middle English a knowe, Middle English a knowes, 1800s aknee, 1900s– a-knee; N.E.D. (1884) also records a form Middle English a cneo.
