From an Old French name, Melisende, of Germanic (Frankish) origin, from amal ‘labour’ + swinth ‘strength’. This was the name of a daughter of Charlemagne. It was adopted by the Normans and introduced by them to Britain.
English: occupational name for a fisherman, Middle English fischer. The name has also been used in Ireland as a loose equivalent of Braden. As an American family name, this has absorbed cognates and names of similar meaning from many other European languages, including German Fischer, Dutch Visser, Hungarian Halász, Italian Pescatore, Polish Rybarz, etc.