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pocosin

or po·co·son, po·co·sen

[puh-koh-suh n, poh-kuh-suh n]
noun Southeastern U.S.
  1. a swamp or marsh in an upland coastal region.

Origin of pocosin

An Americanism dating back to 1625–35; probably < an unattested form in a southern Eastern Algonquian language
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018