From Dutch. The root is 'pol', which is the same as 'ball'. A 'pol' was a low artificial hill in a coastal marshland whereupon a farmhouse could be build. The original plural was probably 'poller', which became 'polder'. From the small hill the word eventually referred to the land around it.
- Rhymes: -əʊldə(r)
polder (plural polders)
- An area of ground reclaimed from a sea or lake by means of dikes.