Thorn (letter)
Thorn or þorn (Þ, þ) is a letter in the Old English and other languages it is not used except in Iceland, where it survives. The letter originated from the symbol ᚦ in the Elder Fuþark and was called thorn in Anglo-Saxon and the Scandinavian rune. It is similar in appearance to the archaic Greek letter sho (ϸ), although the two are historically unrelated. The only language þ is still currently in use in is Icelandic.