Legsby, in the South Riding of Lindsey of Lincolnshire, comes from the Old Norse male personal name Leggrand the Old Norse element by ‘farmstead, village’.
The boundary between Legsby and Linwood was recorded as Leggeshou/ Legeshou/ Leggeshow ‘Legg’s mound, burial mound’ presumably named from the same man and Old Norse haugr ‘hill, mound, a burial mound’.
