Wyvern

The wyvern (/ˈwaɪvərn/ WY-vərn, sometimes spelled wivern) is a type of mythical dragon with two legs, two wings, and often a pointed tail.

[5][6] The concluding "–n" had been added by the beginning of the 17th century, when John Guillim in 1610 describes the "wiverne" as a creature that "partake[s] of a Fowle in the Wings and Legs ... and doth resemble a Serpent in the Taile".

[7]: 463 The concept of winged snakes, mythical creatures similar to wyverns, is common in cultures around the Mediterranean, with a notable example being the Egyptian goddess Wadjet.

In British heraldry, the term "wyver" first appears in Great Roll in 1312, and is derived from the Old French "wyvre", meaning "serpent".

[10][11] The wyvern frequently features in modern fantasy fiction, such as Fourth Wing, though its first literary appearances may have been in medieval bestiaries.

[21] A green Wyvern stands in the emblem of the ancient and historical Umbrian city of Terni, the dragon is called by the citizens with the name of Thyrus.

The wyvern is a popular commercial logo or mascot, especially in Wales and what was once the West Country Kingdom of Wessex, but also in Herefordshire and Worcestershire, as the rivers Wye and Severn run through Hereford and Worcester respectively.

Y Ddraig Aur , a flag which was carried by Owain Glyndwr who most notably displayed it at Twt Hill after his successes in reclaiming Welsh territory. The wyvern is based on his privy seal. [ 1 ]
Wessex is often, in modern times, symbolised by a wyvern or dragon . While there is little to no evidence that it explicitly identified Wessex at the time of the kingdom, the association was popularised in the 19th century. [ 2 ] The above flag was created by William Crampton , an advocate for English regional flags, in 1974. [ 3 ]
A wyvern from a fourteenth-century manuscript in the National Library of Wales , Aberystwyth : this example has a second head at the end of its tail.
A carved wyvern on the choir stalls of Chester Cathedral in Cheshire, England, c. 1380
Wyverns supporting the arms of John Churchill, 1st Duke of Marlborough