Late 16th century; earliest use found in Francis Thynne (?1545–1608), herald and antiquary. From ancient Greek μυθολόγος teller of tales + -ian. Compare Middle French, French †mythologien.
Definition of mythologian in US English:
mythologian
noun
Mythologist.
Origin
Late 16th century; earliest use found in Francis Thynne (?1545–1608), herald and antiquary. From ancient Greek μυθολόγος teller of tales + -ian. Compare Middle French, French † mythologien.