The first element of Smisby, in the Repton and Gresley Hundred of Derbyshire, is either Old Norse smiðr ‘smith’ or it Old English cognate smið, the second element of the place-name is Old Norse by ‘a farmstead, a village’.
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Find out about Smisby, Derbyshire.
Image © Mat Fascione, via Geograph, CC BY-SA 2.0
Kenneth Cameron, The Place-Names of Derbyshire III. English Place-Name Society Volume XXIX (1959), p. 658.