Obs. exc. dial. [app. an irreg. variant of SWATH1. Cf. dial. swatch = SWATHE v.] A row (of corn or grass) cut.
1573. Tusser, Husb. (1878), 131. One spreadeth those bands, so in order to ly, As barlie (in swatches) may fill it thereby.
1901. (Lancashire) in Eng. Dial. Dict.