OSMOTHERLEY, a township, in the parish and union of Ulverston
, hundred of Lonsdale north of the Sands, N. division of Lancashire, 3 miles (N. by W.) from Ulverston; containing 298 inhabitants. This place appears to be the Asmunderlaw of the 13th and 14th centuries. William de Asmunderlaw was a witness to the charter of John de Lancaster to the burgesses of Ulverston, in the reign of Edward I.; and by an escheat of the 18th of Edward III., it seems that Laurence de Asmondrelawe held a messuage here. This race has long been extinct. The surface of the land is hilly, and there is a considerable tract of peat-moss on the elevated grounds. A school is endowed with about £16 per annum.
Extract from: A Topographical Dictionary of England comprising the several counties, cities, boroughs, corporate and market towns, parishes, and townships..... 7th Edition, by Samuel Lewis, London, 1848.