A wyvern or wivern 's a legendary winged reptilian creature with two legs often found in mediaeval heraldry. The word's derived from Middle English wyvere, from Old North French wivre "viper". The wyvern's regarded as a type of dragon. Wyverns are normally shown as dragons with two legs and two wings. Sometimes there're eagle's claws on the wingtips. The rest of its appearance can vary, such as appearing with a tail spade or with a serpent-like tail. Guivre The North French cognate's guivre. o… (More on Wyvern)