ratiocinor

Latin

Etymology

From ratiō (“reason, calculation”) +‎ -cinor (analogical suffix based on vaticinor (“to prophesy”)).

Pronunciation
  • (Classical) IPA(key): /ra.tiˈoː.ki.nor/, [ra.tɪˈoː.kɪ.nɔr]

Verb

ratiōcinor (present infinitive ratiōcinārī, perfect active ratiōcinātus sum); first conjugation, deponent

  1. I reckon, compute or calculate
  2. I consider, deliberate or meditate
  3. I argue, infer or conclude

Inflection
   Conjugation of ratiocinor (first conjugation, deponent)
indicative singular plural
first second third first second third
active present ratiōcinor ratiōcināris, ratiōcināre ratiōcinātur ratiōcināmur ratiōcināminī ratiōcinantur
imperfect ratiōcinābar ratiōcinābāris, ratiōcinābāre ratiōcinābātur ratiōcinābāmur ratiōcinābāminī ratiōcinābantur
future ratiōcinābor ratiōcināberis, ratiōcinābere ratiōcinābitur ratiōcinābimur ratiōcinābiminī ratiōcinābuntur
perfect ratiōcinātus + present active indicative of sum
pluperfect ratiōcinātus + imperfect active indicative of sum
future perfect ratiōcinātus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present ratiōciner ratiōcinēris, ratiōcinēre ratiōcinētur ratiōcinēmur ratiōcinēminī ratiōcinentur
imperfect ratiōcinārer ratiōcinārēris, ratiōcinārēre ratiōcinārētur ratiōcinārēmur ratiōcinārēminī ratiōcinārentur
perfect ratiōcinātus + present active subjunctive of sum
pluperfect ratiōcinātus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present — ratiōcināre — — ratiōcināminī —
future — ratiōcinātor ratiōcinātor — — ratiōcinantor
non-finite forms active passive
present perfect future present perfect future
infinitives ratiōcinārī ratiōcinātus esse ratiōcinātūrus esse — — —
participles ratiōcināns ratiōcinātus ratiōcinātūrus — — ratiōcinandus
verbal nouns gerund supine
nominative genitive dative/ablative accusative accusative ablative
ratiōcinārī ratiōcinandī ratiōcinandō ratiōcinandum ratiōcinātum ratiōcinātū

Derived terms

References
  • ratiocinor in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • ratiocinor in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • ratiocinor in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
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