ἠμαθόεις
From LSJ
ξένῳ δὲ σιγᾶν κρεῖττον ἢ κεκραγέναι → it's better for a stranger to keep silence than to shout (Menander)
English (LSJ)
εσσα, εν (or -όεις, εν if Πύλος (q.v.) be fem.), Ep. for ἀμ-, (ἄμαθος)
A sandy, epith. of the Elean Pylos, Πύλον ἠμαθόεντα Od.1.93,al., Hes.Sc.360: generally ἠμαθόεσσα ἠϊών A.R.1.932. (Deriv. from the name of a river by Str.8.3.14.)