Here be Dragons.
When a dragon in a fantasy work — be it a novel, a film, or a videogame — is depicted as having just two wings (often also locomotory limbs) and two legs, the argument is often made that “it is not a dragon; it has two wings and two legs, therefore it is a wyvern, and should not be called a dragon“. This belief of an absolute dragon-wyvern dichotomy is held by surprisingly many as a sort of dogmatic truth — one that is radically false, in the face of actual data, history, literature and classical art saying otherwise. Of course, in no way a completely arbitrary classification reflects the plasticity of the word dragon, as well as the concept(s) of dragon.
Allow me thus to take you readers into a flying journey through the fantastic and languages, and explain why dragons can have as many limbs and wings as they please and still be called dragons.