Wyvern folklore is rarely fire-breathing like the four-legged dragon. Sometimes modern fantasy book and media authors have wyverns that are frost-breathing or poison-breathing instead of fire-breathing. The current spelling "wyvern" is not attested before the seventeenth century as "winged two-footed dragon". According to the Oxford English Dictionary, it is an alteration of Middle English "wyver" (attested thirteenth century), from Anglo-French "wivre" (cf. French "guivre" and "vouivre"), which originate from Latin "vīpera", meaning "viper", "adder", or "asp". Conversely, medievalist William Sayers proposes a more complex origin for the term. He notes that the Anglo-French "guivre" and its Middle English derivative ceased to
Wyvern (vessel) in three keel bolts. In December 2013, "Wyvern" sailed to Denmark for repairs at a shipyard. Wyvern (vessel) Wyvern is a open sea sailing ship operated by Stavanger Maritime Museum. The ship was designed by Colin Archer on a commission from British-born Frederick Croft and was launched on 10 August 1897. She sailed under the German flag from 1909. The Norwegian newspaper editor Rolf Thommessen bought her in 1924 and renamed her "" ("Mermaid III"). This name was kept by the English owners, Anne and Terrence Carr, who acquired her in 1947 and sailed her for 27 years. In 1984,