The term nuckelavee derives from Orcadian knoggelvi, and according to Orkney resident and 19th-century folklorist Walter Traill Dennison means "Devil of the Sea".
Istilah nuckelavee berasal dari Orcadian knoggelvi, dan menurut penduduk Orkney dan folklorist abad ke-19 Walter Traill Dennison menyebutnya "Devil of the Sea".