νίπτρον
From LSJ
τὸ γὰρ εὖ πράττειν παρὰ τὴν ἀξίαν ἀφορμὴ τοῦ κακῶς φρονεῖν τοῖς ἀνοήτοις γίγνεται → undeserved success engenders folly in unbalanced minds
English (LSJ)
τό, (νίζω)
A water for washing, Poll.10.78: mostly in pl., A.Fr.225, E.Ion1174, Hel.1384, AP12.68 (Mel.); παῖδες ν. ἔδοσαν κατὰ χειρῶν Philox.2.39. II Νίπτρα, τά, the Bath Scene, title of play by Sophocles on the recognition of Odysseus by his nurse; also applied to Od.19, Arist.Po.1460a26, and to the Bath Scene in that book, ib.1454b30.
German (Pape)
[Seite 257] τό, das Waschwasser; Aesch. frg. 210; ἐκ κρωσσῶν ὕδωρ χεροῖν ἔπεμπε νίπτρα, Eur. Ion 1174; sp. D., νίπτρα ποδῶν, Mel. 14 (XII, 68); Nicarch. 8 (IX, 330).