occīdĭo — Lewis & Short
occīdĭo, ōnis, f.1. occīdo,
I a massacre, utter destruction, extermination (rare before the Aug. period;
syn.: clades, strages, caedes): orare ne in occidione victoriam poneret,Liv. 3, 28.—Esp. freq. in the phrase occidione occidere or caedere, to cut off completely, cut down with utter destruction:
equitatus occidione occisus,Cic. Fam. 15, 4, 7; id. Phil. 14, 14, 36; Liv. 28, 43; 2, 51; 9, 38 et saep.:
omnes occidione caesi,Just. 26, 2, 5; 28, 2, 1; so,
occidione occumbere,to be wholly cut off, Tac. A. 12, 38:
equi, viri, cuncta victa occidioni dantur,every thing captured was destroyed, id. ib. 13, 57:
occidioni exempti,id. ib. 12, 56 fin.—Of animals and plants:
nec ad occidionem gens interimenda est,Col. 9, 15, 3:
occidionem gregis prohibens,id. 7, 5, 16:
nec ad occidionem universum genus perduci patimur,id. 4, 17, 3.