Mainly U.S.: name chosen as symbolic of the American South. The nickname is of uncertain origin. It is said to be from the ten-dollar bills printed in New Orleans, named in the Cajun dialect from French dix ‘ten’.
English, Welsh, and Irish: from the personal name Piers, the usual Norman vernacular form of Peter. In Wales this represents a patronymic ap Piers. In Ireland it represents a reduced Anglicized form of Gaelic Mac Piarais ‘son of Piaras’, a Gaelicized form of Piers.