swath (n.) Look up swath at Dictionary.com
Old English swæð, swaðu "track, trace, band," from Proto-Germanic *swathan, *swatho (cf. Old Frisian swethe "boundary made by a scythe," Middle Dutch swade, German Schwad "a row of cut grass"); ulterior connections uncertain. Meaning "space covered by the single cut of a scythe" emerged late 15c., and that of "strip, lengthwise extent" is from c.1600.