ἀρνευτήρια

A. tumbling or diving tricks, Id. (s. v. l.). (Acc. to D.H.ap.Et.Gen., from ἀρήν, one that plunges and butts like a lamb; but rather from ἀρνεύω butt or dive headlong like a ram (Ἀρνεύς, cf. ἀρνειός).)