Holme Lacy is not from Old Norse holmr "island" like other places of the name Holme, but from the fairly similar Old English hamm "land in a river-bend".
The name has varied through history; it has also been known as Homme Lacy (1396) [REF] Hamlayce (1648), Humlachie (1701) and Hom Lacy (1836).