Where does “epitelial” come from?

epitelial (Spanish) comes from Spanish epitelio, from New Latin epithēlium, 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.

epitelial (Spanish): epithelial