Fenby, in the Haverstoe Wapentake of Lincolnshire, is an Anglo-Scandinavian hybrid from Old English fenn ‘a fen, a marsh, marshland’ and Old Norse by ‘a farmstead, a village’. It is most likely to be a partial Scandinavianization of an earlier Old English place-name, perhaps Fenton, with a similar meaning. Fenby is now a joint parish with Ashby, and the name survives in Fenby Farm, which lies in what must have been a fenny area on the lower slope of the Wolds.
