Hecatomb

Hecatomb (ἐκατόμ, from ἑκατόν, one hundred, and βοῦς, an ox), a sacrifice offered by the ancient Greeks only on extraordinary occasions, consisting of one hundred oxen. The word is sometimes applied to an offering of other animals than oxen; and it is used occasionally to denote any large sacrifice, a definite number being used for an indefinite.