Where does “epicykl” come from?

epicykl (Polish) comes from Latin epicyclus, from Ancient Greek ἐπίκυκλος, from Ancient Greek ἐπί, from Ancient Greek Ἡμέρα, from Ancient Greek ἦμαρ, from Proto-Hellenic ā́mər, from Proto-Indo-European h₂eh₃mr̥, from Proto-Indo-European h₂eh₃- — to be hot; to burn.

epicykl (Polish): epicycle