ὦλξ
From LSJ
βωμὸν Ἀριστοτέλης ἱδρύσατο τόνδε Πλάτωνος, ἀνδρὸς ὃν οὐδ' αἰνεῖν τοῖσι κακοῖσι θέμις → Aristotle had this altar of Plato set up — Plato, a man whom the wicked dare not even mention in praise
German (Pape)
[Seite 1410] ἡ, poet. syncopirt = ὦλαξ, αὖλαξ, die Furche, Hom. nur im acc. ὦλκα, Il. 13, 707 Od. 18, 375.