hecatombn.

hecatomb (n.)1590s, from Greek hekatombe "offering of 100 oxen," but generally "a great public sacrifice," from hekaton "one hundred" (perhaps from hen, neuter of eis "one" + *katon "hundred") + bous "ox." The first month of the Attic calendar (corresponding to July-August) was Hekatombaion, in which sacrifices were made.