Early 19th century; earliest use found in George Faber (1773–1854), Church of England clergyman and religious writer. From Mithra, variant of Mithras + -atic.
Definition of Mithratic in US English:
Mithratic
adjectivemɪˈθratɪk
rare
Mithraic.
Origin
Early 19th century; earliest use found in George Faber (1773–1854), Church of England clergyman and religious writer. From Mithra, variant of Mithras + -atic.