Kynodesme
A kynodesmē (Greek: κυνοδέσμη, English translation: "dog tie") was a cord or string or sometimes a leather strip that was worn primarily by athletes in Ancient Greece and Etruria to prevent the exposure of the glans penis in public (considered to be ill-mannered) and to restrict untethered movement of the penis during sporting competition. It was tied tightly around the akroposthion, the most distal, tubular portion of the foreskin that extends beyond the glans.