ratus adj. P. of reor, reckoned, fixed by calculation

— in the phrase, pro ratā parte, or pro ratā (sc. parte), in proportion, proportionally: militibus agros pollicetur, quaterna in singulos iugera, et pro ratā parte centurionibus, Cs.: perinde ut cuique data sunt pro ratā parte: dare pro ratā aliis, L.

—Thought out, defined by calculation, prescribed, determined, fixed: rata et certa spatia definire: (astrorum) cursūs: quod certum fuerit esse futurum rato tempore.

—Fixed, settled, established, firm, confirmed, approved, sure, certain, valid: quod modo erat ratum inritumst, T.: decretum: leges: auctoritas harum rerum: cuius tribunatus si ratus est, nihil est, quod inritum possit esse: testamenta (opp. rupta): Dixerat idque ratum Stygii per flumina Annuit, V.: rata sint sua visa precatur, may be fulfilled, O.: vox, made good, O.: (ebrietas) spes iubet esse ratas, i. e. leaps to the fulfilment of, H.: pax, S.: quid augur (habet), cur a dextrā corvus a sinistrā cornix faciat ratum? for making a favorable augury: parens nati rata verba Fecit, i. e. fulfilled, O.: consentiens vox ratum nomen imperiumque regi effecit, confirmed, L.: ut, quodcumque rettulisset, id ratum haberet: ista ipsa rata mihi erunt.