1) A low-lying piece of grass land subject to flooding.
1642 When wee used to mowe rownde aboute the Corne-Sikes, viz the balkes and swanges att the farre ende, that was accounted three dayworkes, Elmswell. Although it is generally a rare word it occurs frequently in one set of Bridlington records: 1636 the Mill Hill and swang
1668 for an incrochment ... Adjoyne upon the swange
1683 for plowing further into the swang then the bounder stones 2s 6d.