ἀμφίκυρτος
From LSJ
Ὑπὸ τῆς ἀνάγκης πολλὰ γίγνεται κακά → Ad multa cogit nos necessitas mala → Der Zwang der Not lässt vieles schlimme Leid geschehn
English (LSJ)
ον,
A convex on each side, like the moon in her second or third quarter, gibbous, Arist.Cael.291b20, Thphr.Sign.56, Plu.2.381d. 2 doubly convex, of a curvilinear angle, opp. ἀμφίκοιλος, Procl.in Euc.Def.8p.127F., al.; γραμμαί Gal.2.673; λεπίδες Ph.Bel.70.23.