swale

[ sweyl ]
/ sweɪl /

noun Chiefly Northeastern U.S.

a low place in a tract of land, usually moister and often having ranker vegetation than the adjacent higher land.
a valleylike intersection of two slopes in a piece of land.

Origin of swale

1400–50; late Middle English; originally a cool, shady spot, perhaps < Old Norse svalr cool, or svalir a covered porch
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for swale

swale

/ (sweɪl) /

noun

mainly US
  1. a moist depression in a tract of land, usually with rank vegetation
  2. (as modifier)swell and swale topography

Word Origin for swale

C16: probably of Scandinavian origin; compare Old Norse svala to chill
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012