 Haswell-Smith (2004) suggests that Rum is "probably" pre-Celtic, but may be Old Norse rõm-øy for "wide island" or Gaelic ì-dhruim (pronounced [iˈɣɾɯim]) meaning "isle of the ridge". Ross (2007) notes that there is a written record of Ruim from 677 and suggests "spacious island" from the Gaelic rùm. Mac an Tàilleir (2003) is unequivocal that Rùm is "a pre-Gaelic name and unclear". The origins are therefore speculative, but it is known for certain that George Bullough changed the spelling to Rhum to avoid the association with the alcoholic drink rum. However, the "Rhum" spelling is used on a Kilmory gravestone dated 1843. In 1991 the Nature Conservancy Council of Scotland (the forerunner to Scottish Natural Heritage) reverted to the use of Rum without the h.
