Updated June 9, 2019 Share: Family name origins & meanings German : variant of Plötz (see Ploetz).German : metonymic occupational name from platz, plotz ‘wedge (for splitting stone)’, or a nickname for a big, heavy man.German : variant of Platz 2.German : perhaps a nickname from a Slavic word meaning ‘roach’, e.g. Polish płoć.