Dragonfly is an insect. The name dragonfly or dragon fly was erroneously translated into its today's form. Its true origin is not known. But, the story of how the dragon fly got its name can be found in the book Folklore of the Dragonfly: A Linguistic Approach. In this book, he stated the origin of the dragon fly to be an ancient Romanian Folktale. The story starts with St George. St George has a beautiful horse.
In this tale, a devil turns this horse into a giant insect with wings. The tale tells that people referred to this giant insect as 'St George's Insect' (this was the English translation for the actual words). The translation of the phrases that they used when translated also meant 'Devil's Horse'. The peasants of that time actually saw the Devils's Horse. Later, the people referred the horse as devil's fly. Sarot stated Romanian word for devil was drac but drac also meant dragon in Romanian. Thus, he concluded that Devil fly eventually came to be known as dragon fly.
In this tale, a devil turns this horse into a giant insect with wings. The tale tells that people referred to this giant insect as 'St George's Insect' (this was the English translation for the actual words). The translation of the phrases that they used when translated also meant 'Devil's Horse'. The peasants of that time actually saw the Devils's Horse. Later, the people referred the horse as devil's fly. Sarot stated Romanian word for devil was drac but drac also meant dragon in Romanian. Thus, he concluded that Devil fly eventually came to be known as dragon fly.