The usual modern spelling of Margery. It seems to have arisen as the result of folk etymological association of the name with that of the herb marjoram (compare Rosemary). This word is of uncertain origin; its Middle English and Old French form was majorane, without the first -r-.
English (West Country): habitational name from any of the forty or so places in southwestern England called Beer(e) or Bear(e). Most of these derive their names from the West Saxon dative case, beara, of Old English bearu ‘grove’, ‘wood’ (the standard Old English dative bearwe being preserved in Barrow). Some may be from Old English bǣr ‘swine pasture’.