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
Compartment (heraldry) Compartment (heraldry) In heraldry, a compartment is a design placed under the shield, usually rocks, a grassy mount ("mount vert"), or some sort of other landscape upon which the supporters are depicted as standing. Care must be taken to distinguish true compartments from items upon which supporters are merely resting one or more feet, or, sometimes, mere heraldic badges or pure decoration under the shield, and, conversely, care must also be taken in very unusual cases such as the coat of arms of Belize, in which what may be taken to be a crest, the mahogany tree rising above the