σπῖλος

From LSJ

μὴ πιστεύσητε τοῖς ἀμαθεστέροις ὑμῶν αὐτῶν → do not believe those who are more ignorant than you yourselves

Source

German (Pape)

[Seite 921] ὁ, seltener σπίλος, Fleck, Schmutz, Schandfleck; Ath. VII, 297 c; Diosc.; schlechter Ausdruck für das att. κηλίς, Lob. Phryn. 28.