bisextilis
From LSJ
κοινὴ γὰρ ἡ τύχη καὶ τὸ μέλλον ἀόρατον → fortune is common to all, the future is unknown | fortune is common to all and the future unknown | fate is common to all and the future unknown
Latin > English (Lewis & Short)
bĭsextĭlis: e, adj. bisextus,
I containing an intercalary day: annus, Isid. Orig. 6, 17, 25.