Mythology \My*thol"o*gy\, n.; pl. {Mythologies}. [F. mythologie, L. mythologia, Gr. myqologi`a; my^qos, fable, myth + lo`gos speech, discourse.] 1. The science which treats of myths; a treatise on myths. 2. A body of myths; esp., the collective myths which describe the gods of a heathen people; as, the mythology of the Greeks.