kothornos (a thick-soled laced boot worn by tragic actors in ancient Athenian tragedies). I did a bit of looking after this word. I like shoes. But found that those shoes worn by tragedians fitted both on left and right foot. There was a Theramenes (455-404 BC), who was nicknamed "kóthornos" , because his polictics were lacking 'principle'. ( wanting to save both cabbage and goat)

Any theater and shoe minded person who knows why those boots were fitting both feet? They look about like this: link