α. Middle English noumper, Middle English noumpere, Middle English noumpiere, Middle English nowmpowre, 1600s nowmper; N.E.D. (1907) also records a form Middle English nowmpere.
β. Middle English nompere, Middle English nompeyr, Middle English nwmpere.
γ. Middle English noounpier, Middle English nounpeer, Middle English nounpere, Middle English nounpier, Middle English nounpiere; N.E.D. (1907) also records a form Middle English nounper.