What is the Latin word for empyrean?

The usual Latin words for “empyrean” are caelum, ārdeō. The right choice depends on the sense; see the distinctions below.

English → Latin

“empyrean” in Latin

caelumheaven (where the stars and the Milky Way is); sky; climate, weather ārdeōto burn (be consumed by fire); to glow; to glisten with a feature, usually with a colour

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

empyrean

caelum (general term for heaven): *caelum stelliferum, ardens: ignifer aether (Lucr.): igneae arces (Hor.) :aetherea domus (Hor.): *caelum altissimum aethereumque (after Cic., De Nat., D., 2, 24).

Quick answer

What is the Latin word for empyrean?: The usual Latin words for “empyrean” are caelum, ārdeō. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.