Ἄπερ

From LSJ

βορβόρῳ δ' ὕδωρ λαμπρὸν μιαίνων οὔποθ' εὑρήσεις ποτόνonce limpid waters are stained with mud, you'll never find a drink

Source

Spanish (DGE)

-ερως, ὁ
Aper gramático, discípulo de Aristarco, s. II a.C., Sud.s.u. Ἡρακλείδης (corrupto, cjs. Ἀντέρως, Ἀπίων).