ναυτική

From LSJ

εἰς τετρημένον πίθον ἀντλεῖν → run water into a punctured pitcher, to the perforated jar bale water, labour in vain, labor in vain

Source

Russian (Dvoretsky)

ναυτική:
1 (sc. τέχνη) искусство мореплавания, кораблевождение Her., Xen.;
2 морские силы, флот Her.