LSJ
ῶνος, ὁ, heap of earth, boundary-heap, Tab.Heracl. 1.136; γαεών IG 14.352i i 83 (Halaesa, pl.).
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ῶνος, ὁ, Erdhaufen, Grenzhügel, Tab. Heracl. 1.88 ; vgl. Koen Greg.Cor. p. 224.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)