from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Plural form of periaktos.
- n. A device for changing scenery in a theatre. A row of adjacent, three-sided columns form a backdrop to the stage and are turned in unison to show a different face.
From Ancient Greek περίακτοι (periaktoi), masculine plural of περίακτος (periaktos, "revolving, pivoting"), from περιάγω (periagō, "I turn round"). (Wiktionary)
Beyond are spaces provided for decoration -- places that the Greeks call [Greek: periaktoi], because in these places are triangular pieces of machinery ([Greek: D, D]) which revolve, each having three decorated faces.