ῥυπαρῶς

From LSJ

ἐνίοις τὸ σιγᾶν κρεῖττόν ἐστι τοῦ λαλεῖν → for some people silence is better than words (Menander)

Source

Russian (Dvoretsky)

ῥῠπᾰρῶς: низко, бесчестно Anth.

Greek (Liddell-Scott)

ῥυπαρῶς: Ἐπίρρ., ἴδε ῥυπαρὸς ἐν τέλει.