Carling Howe YN [Kerlinghou 12 Guisb], Carlinghow YW [Kerlinghowe 1307 Wakef]. ‘The hill of the old woman or hag.’ Second el. OScand haugr ‘hill’. The first is ON kerling, OSw kaerling ‘old woman (Scotch carline ‘woman, hag, witch). Very likely the hill was one where witches were supposed to gather.
The Concise Oxford Dictionary of English Place Names. 4th edition. Eilert Ekwall