Where does “κουράδω” come from?

κουράδω (Greek) comes from Greek κουράδα, from Ancient Greek σκωράδιον, from Ancient Greek σκῶρ, from Proto-Hellenic skṓr, from Proto-Indo-European sḱṓr, from Proto-Indo-European sóḱr̥, from Proto-Indo-European -r̥ — Derives nouns from roots, frequently mass nouns.

κουράδω (Greek): turd, prick, jerk, asshole