ζευγματικόν
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
English (LSJ)
τό, A lock-toll, PLond.3.1157.6, al. (iii A.D.), POxy. 2129.4, al. (iii A.D.).