δράκων
a dragon
δράκων a fabulous kind of serpent (perhaps as supposed to fascinate)
Derivation: probably from an alternate form of δέρκομαι (to look);
KJV Usage: dragon.

Thayer:
1) a dragon, a great serpent, a name for Satan


δράκων
drakōn
drak'-own
Probably from an alternate form of δέρκομαι derkomai (to look); a fabulous kind of serpent (perhaps as supposed to fascinate)
KJV Usage: dragon.