εἰς τετρημένον πίθον ἀντλεῖν → run water into a punctured pitcher, to the perforated jar bale water, labour in vain, labor in vain
P. and V. μνήμη, ἡ, μνεία, ἡ, V. μνῆστις, ἡ.
memorial: P. and V. μνημεῖον, τό, Ar. and P. μνημόσυνον, τό, P. ὑπόμνημα, τό, V. μνῆμα, τό.