Dragon vs Draco

Dragon and Draco both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dragon	Yes	No	No	No
Draco	Yes	No	No	No

As nouns, Dragon and Draco are synonyms defined as:

Dragon and Draco: a faint constellation twisting around the North Celestial Pole and lying between Ursa Major and Cepheus

Dragon (noun)	Draco (noun)
a faint constellation twisting around the North Celestial Pole and lying between Ursa Major and Cepheus	a reptile genus known as flying dragons or flying lizards
	a faint constellation twisting around the North Celestial Pole and lying between Ursa Major and Cepheus
	Athenian lawmaker whose code of laws prescribed death for almost every offense (circa 7th century BC)