a. Obs. rare–1. [f. Gr. κλιμάταρχ-ος (in Byzantine Greek ‘governor of a province,’ f. κλίματ- region, clime + -αρχος ruling).] Presiding over a ‘climate’ or region of the earth.
1794. T. Taylor, Pausanias, III. 280. Among the terrestrial [gods], some preside over climates, or are climatarchic.
