αἴσχρωμα

From LSJ

πεσούσης νυκτός, πάσα γυνὴ Λαΐς εστί → at nightfall, every woman is a Laïs | all cats are gray at night | all cats are gray by night | all cats are gray in the dark | all cats are grey at night | all cats are grey by night | all cats are grey in the dark | all women look the same with the lights off | when lights are out all women look the same

Source

Spanish (DGE)

-ματος, τό
• Grafía: graf. εἴσχρωμα
infamia o calumnia διαβεβληκέναι ἡμᾶς εἴσχρωμα PStras.652.54, cf. 63 (II d.C.).