Middle English, from Anglo-French ‘dragun’, from Latin ‘dracon-, draco’ serpent, dragon, from Greek ‘drakOn’ serpent; akin to Old English torht bright, Greek derkesthai to see, look at

So dragon comes from the Greek word for serpent

The Greek, “drakon,” meant serpent, and many early dragons were depicted as serpents or serpentine.

Latin, “draco,” also means serpent. The Romans saw dragons as winged serpents.

The Welsh word for dragon is “ddraig,” and the red dragon of the Welsh flag is known as “Y Ddraig Goch,” or Red Dragon.

Welsh also has a word “dreigiaw,” meaning silent meteors, perhaps symbolizing dragons as a destructive force.