ἀκρόλοφος
From LSJ
ἀνὴρ ἀχάριστος μὴ νομιζέσθω φίλος → an ungrateful man should not be considered a friend
English (LSJ)
ον,
A high-crested, peaked, πρῶνες Opp.C.1.418; πέτραι AP12.185 (Strat.):—Subst., mountain crest, Plu.Publ.22.
German (Pape)
[Seite 83] ὁ, Hügelspitze, Plut. Popl. 22. – Adj. -φοι πέτραι, hohe Felsen, Strat. 27 (XII, 185); πρῶνες Opp. Cyn. 1, 418.