keld

1. not comparableobsoleteHaving a kell or covering; webbed.

   […] the Otter then that keepes In the wild Riuers, in their Bancks and Sleeps, And ſeeds on Fish, which vnder water ſtill, He with his keld ſeet, and keene teeth doth kill; The other two into the Arke doth follow, Though his ill ſhape doth cauſe him but to wallow[…]

   1630, Michael Drayton, “Noahs Floud”, in The Muses Elizium Lately Discouered, page 98

plural kelds

1. Northern EnglandobsoletepossiblyA marshy place or a spring.

   Than thou to'nns [turns] doon o' t'left hand an' t'keld's a matter o' tunty yards doon t'bank.

   1870, Atkinson, Lost, page xxii

   2 more examples

   […] locusts and varying climatic conditions ravage the kelds, and much of the land is bad or indifferent.

   1898, Journal of the South African Institute of Mining and Metallurgy, volumes 1-3, page 170

   On the outer margins of the Wolds, however, there are […] Foul Sike, Keld Sike, The Kelds, Cold Kelds, Keld Ings, The Swang (a marsh or spongey ground) and The Whams at Settrington, […]

   1898, Transactions of the East Riding Antiquarian Society, volume 6, page 23

1. A hamlet in Shap parish, Westmorland and Furness, Cumbria, England, previously in Eden district (OS grid ref NY5514).
2. A hamlet in Muker parish, North Yorkshire, England, previously in Richmondshire district (OS grid ref NY8901).