1. altered form of German Pösinger, a habitational name for someone from Pösing in Bavaria, or Bössinger, a habitational name for someone from Bissingen near Ludwigsburg (earlier Bussingen) or from Baisingen (earlier Bössingen).
2. German (Pössinger): habitational name for someone from Pösingen in the Upper Palatinate.
See the Key to the Dictionary or consult the General Introduction for further explanation.