potissime

From LSJ

οὐ παντὸς ἀνδρὸς ἐς Κόρινθον ἔσθ' ὁ πλοῦς → it's not for every man to make a journey to Corinth, not everyone can afford a trip to Corinth

Source

Latin > English (Lewis & Short)

pŏtissĭmē: (pŏtissŭmē) and pŏtis-sĭmum (pŏtissŭmum),
I advv., v. potis fin. B.

Latin > French (Gaffiot 2016)

pŏtissĭmē, v. potissimum.