Old English Letters are letters used in the English language prior to the Norman Conquest of 1066. ETH, THORN, YOGH, EDH and WEN are all examples of Old English Letters. ETH is a letter that looks like the Greek letter Theta and was used to represent the sound 'th'. THORN is a letter that looks like the letter 'P' and was used to represent the sound 'th'. YOGH is a letter that looks like the number 3 and was used to represent the sound 'y'. EDH is a letter that looks like the letter 'D' and was used to represent the sound 'dh'. WEN is a letter that looks like the letter 'W' and was used to represent the sound 'w'.