polder Save DMLBS polder [MDu. polder] , low-lying land reclaimed from marsh, polder. 1418 in stipendio opilionis apud Grykes, cum emendacione ~ri ibidem Doc. Robertsbr. 166 (cf. ib. 168: 1427 in expensis circa le ~er,; ib. 155: 1484 le Newpolder).