1) A willow tree or, in the plural, a willow copse, found commonly as an element in minor place-names.
1315 ‘the vaccary of the Wythenes’, Sowerby
1360 ‘a meadow … in le Wythyns’, Fixby
1539 John Sutclif of Wethyns, Heptonstall
1592 ‘The Wythin Carr pasture’, Methley. It remained in use as a dialect word: 1697 carried away a piece of wood called a saugh or within, Wadsworth.