English:1. occupational name for a worker in lead, especially a maker of lead pipes and conduits, from Anglo-Norman French plom(m)er, plum(m)er ‘plumber’, from plom(b), plum(b) ‘lead’ (Latin plumbum). 2. variant of Plumer 1, 3. 3. occasionally, a habitational name from a minor place name, such as Plummers in Kimpton, Hertfordshire, which was named with Old English plum ‘plum(tree)’ + mere ‘pool’. The name is also established in Ireland, taken there from England in the 17th century.
Dictionary of American Family Names © Patrick Hanks 2003, 2006.