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See also: Ratio



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Borrowed from Latin ratio.



ratio (plural ratios)

  1. A number representing a comparison between two named things.
  2. (arithmetic) The relative magnitudes of two quantities (usually expressed as a quotient).
  3. (law) Short for ratio decidendi.

Derived termsEdit

Related termsEdit




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Wikipedia fr


ratio m (plural ratios)

  1. ratio

Further readingEdit



From reor (to compute) +‎ -tiō.



ratiō f (genitive ratiōnis); third declension

  1. reason, explanation
  2. calculation, account
  3. manner, method


Third declension.

Case Singular Plural
nominative ratiō ratiōnēs
genitive ratiōnis ratiōnum
dative ratiōnī ratiōnibus
accusative ratiōnem ratiōnēs
ablative ratiōne ratiōnibus
vocative ratiō ratiōnēs

Derived termsEdit


See alsoEdit


  • ratio in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • ratio in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • du Cange, Charles (1883), “ratio”, in G. A. Louis Henschel, Pierre Carpentier, Léopold Favre, editors, Glossarium Mediæ et Infimæ Latinitatis (in Latin), Niort: L. Favre
  • ratio” in Félix Gaffiot’s Dictionnaire Illustré Latin-Français, Hachette (1934)
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • the spirit of the times, the fashion: saeculi consuetudo or ratio atque inclinatio temporis (temporum)
    • the case is exactly similar (entirely different): eadem (longe alia) est huius rei ratio
    • to have regard for; take into consideration: rationem habere alicuius rei
    • to look after, guard a person's interests, welfare: rationibus alicuius prospicere or consulere (opp. officere, obstare, adversari)
    • my interests demanded it: meae rationes ita tulerunt
    • to form a conception, notion of a thing: notionem or rationem alicuius rei in animo informare or animo concipere
    • without reflection; inconsiderately; rashly: nullo consilio, nulla ratione, temere
    • after mature deliberation: inita subductaque ratione
    • to have a theoretical knowledge of a thing: ratione, doctrina (opp. usu) aliquid cognitum habere
    • to reduce a thing to its theoretical principles; to apply theory to a thing: ad artem, ad rationem revocare aliquid (De Or. 2. 11. 44)
    • to adopt a didactic tone: ad praecipiendi rationem delābi (Q. Fr. 1. 1. 6. 18)
    • logic, dialectic: dialectica (-ae or -orum) (pure Latin disserendi ratio et scientia)
    • to arrange on strictly logical principles: ratione, eleganter (opp. nulla ratione, ineleganter, confuse) disponere aliquid
    • system: ratio; disciplina, ratio et disciplina; ars
    • to systematise: ad rationem, ad artem et praecepta revocare aliquid (De Or. 1. 41)
    • systematic, methodical knowledge: ratio et doctrina
    • to treat with scientific exactness; to classify: ad rationis praecepta accommodare aliquid
    • to upset the whole system: totam rationem evertere (pass. iacet tota ratio)
    • to proceed, carry on a discussion logically: ratione et via, via et ratione progredi, disputare (Or. 33. 116)
    • to enter on a new method: novam rationem ingredi
    • to be based on a sound principle: a certa ratione proficisci
    • to deal with a subject on scientific principles: ad philosophorum or philosophandi rationes revocare aliquid
    • to bring forward an argument (based on common-sense): rationem afferre (Verr. 3. 85. 195)
    • the conclusion proves that..: ratio or rationis conclusio efficit
    • the syllogism; reasoning: ratiocinatio, ratio
    • chronology: temporum ratio, descriptio, ordo
    • to calculate the date of an event: ad temporum rationem aliquid revocare
    • to draw a mathematical conclusion: mathematicorum ratione concludere aliquid
    • the connection of thought: ratio sententiarum
    • the connection of thought: ratio, qua sententiae inter se excipiunt.
    • to be endowed with reason: rationis participem (opp. expertem) esse
    • to be endowed with reason: ratione praeditum esse, uti
    • to act reasonably, judiciously: prudenter, considerate, consilio agere (opp. temere, nullo consilio, nulla ratione)
    • to be contrary to all reason: rationi repugnare
    • on principle: ratione; animi quodam iudicio
    • a sound and sensible system of conduct: vitae ratio bene ac sapienter instituta
    • the principles which I have followed since I came to man's estate: meae vitae rationes ab ineunte aetate susceptae (Imp. Pomp. 1. 1.)
    • to follow fixed principles of conduct: certas rationes in agendo sequi
    • finance; money-matters: ratio pecuniarum
    • account-book; ledger: codex or tabulae ratio accepti et expensi
    • to go through accounts, make a valuation of a thing: rationem alicuius rei inire, subducere
    • to do something after careful calculation: inita subductaque ratione aliquid facere
    • to balance accounts with some one: rationes putare cum aliquo
    • the accounts balance: ratio alicuius rei constat (convenit, par est)
    • the account of receipts and expenditure: ratio acceptorum et datorum (accepti et expensi) (Amic. 16. 58)
    • to keep the accounts (day-book) carefully: rationem diligenter conficere
    • to render count of a matter; to pass it for audit: rationem alicuius rei reddere
    • to demand an account, an audit of a matter: rationem alicuius rei reposcere aliquem or ab aliquo
    • to demand an account, an audit of a matter: rationem ab aliquo reptere de aliqua re (Cluent. 37. 104)
    • credit and financial position: fides et ratio pecuniarum
    • the interests of the state: commoda publica or rei publicae rationes
    • to further the public interests: rei publicae rationibus or simply rei publicae consulere
    • to consider a thing from a political point of view: ad rei publicae rationes aliquid referre
    • a democratic leader: homo florens in populari ratione
    • judicial organisation: ratio iudiciorum
    • to change one's tactics: rationem belli gerendi mutare (Liv. 32. 31)



ratio f (plural ratios)

  1. ratio