Where does “απρόσωπος” come from?

απρόσωπος (Greek) comes from Greek πρόσωπο, from Ancient Greek πρόσωπον, from Ancient Greek ὤψ, from Proto-Hellenic ókʷs, from Proto-Indo-European h₃ókʷs, from Proto-Indo-European h₃ekʷ- — to see; eye.

απρόσωπος (Greek): impersonal