jucunde
From LSJ
εἰς τὸν τετρημένον πίθον ἀντλεῖν → run water into a punctured pitcher, to the perforated jar bale water, labour in vain, labor in vain
Latin > French (Gaffiot 2016)
jūcundē,¹² agréablement, d’une façon charmante : Cic. Cæl. 13 ; Suet. Tib. 3 || -dius Cic. Fin. 1, 72 || -dissime Cic. Fin. 2, 70.