Lewis & Short

† chŏrēus or -īus, i, m., = χορεῖος (sc. πούς, pes), in verse,

  1. I. A foot, later called trochaeus, –⏑, Cic. Or. 63, 212; Quint. 9, 4, 80; 9, 4, 82; 9, 4, 96; Marc. Vict. p. 2487 P.
  2. II. In later metrists, for the earlier tribrachys, ⏑⏑⏑, Diom. pp. 261 and 475 P.