Eth (Ð, ð; also spelle edh or eð) is a letter used in Old English, Icelandic, Faroese (in which it is called edd), and Dalecarlian. It was also used in Scandinavia during the Middle Ages, but was subsequently replaced with dh and later d. The capital eth resembles a d with a line partially through the vertical stroke. The lowercase resembles an insular d with a line through the top.