ἀπιῶσσος

From LSJ

ο φίλος τον φίλον εν πόνοις και κινδύνοις ου λείπει → a friend does not abandon his friend in difficulties and in danger, a friend in need is a friend indeed

Source

Spanish (DGE)

-ου, ὁ lat. apiosus, mareo, vértigo cierta afección de los caballos Hippiatr.Cant.81.3.