α. Old English an morgen, Old English on morgen, Old English on morgene, Old English on morgenne, Old English on morgne, Old English on morgyne, Old English on morgynne, Old English–Middle English on morne, late Old English on moregan, early Middle English o morgen, early Middle English o morwen, early Middle English on mareȝen, early Middle English on mæreȝen, early Middle English on mærȝen, early Middle English on morewen, early Middle English on morȝen, Middle English o morne, Middle English on marne, Middle English on morn, Middle English on morun (north-west midlands), Middle English on morwen, Middle English on morwn, Middle English on morwyn.
β. Old English a morgen (rare), early Middle English a marewen, early Middle English a marȝen, early Middle English a moregen, early Middle English a morȝen, early Middle English amarȝen, early Middle English amoregen, early Middle English amorȝen, Middle English a marwen, Middle English a morn, Middle English a morne, Middle English a moruen, Middle English a morwen, Middle English amarwen, Middle English amorewen, Middle English amorn, Middle English amorne, Middle English amorwen.