Lewis & Short

† 1. hĭĕra, ae, f. (sc. antidotus), = ἱερά (sacred;

  1. I. Lat. sacra), a sort of antidote against poison, Scrib. Comp. 99; 156.
  2. II. Perh. = corona, a garland: hieran fecimus, Sen. Ep. 83, 4.