nequicquam
From LSJ
θεοῦ θέλοντος κἂν ἐπὶ ῥιπὸς πλέοις → if God willed it, you could sail even on a straw mat | God willing, you may voyage on a mat
Latin > English (Lewis & Short)
nēquicquam: nēquidquam, v. nequiquam.
Latin > French (Gaffiot 2016)
nēquicquam, nēquidquam, nēquīquam, adv., en vain, inutilement : Cic. Quinct. 79 ; Cæs. C. 1, 1 || sans raison, sans but : Cæs. G. 2, 27, 5 || [exclamatif] Liv. 42, 64, 4 || avec impunité : Pl. As. 698.