strophe
n.
c.1600, from Greek strophe "stanza," originally "a turning," in reference to the section of an ode sung by the chorus while turning in one direction, from strephein "to turn," from PIE *streb(h)- "to wind, turn" (cognates: Greek strophaligs "whirl, whirlwind," streblos "twisted," stremma "that which is twisted").