ratiocinor

Latin

Etymology

From ratiō (“reason, calculation”) +‎ -cinor, a suffix generally thought to derive from canō (“to sing; to recite”). Compare vāticinor and sermōcinor.

Pronunciation

• (Classical Latin) IPA^(key): /ra.tiˈoː.ki.nor/, [rät̪iˈoːkɪnɔr]
• (modern Italianate Ecclesiastical) IPA^(key): /rat.t͡siˈo.t͡ʃi.nor/, [rät̪ː͡s̪iˈɔːt͡ʃinor]

Verb

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

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

Conjugation

   Conjugation of ratiōcinor (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	ratiōcinātum esse	ratiōcinātūrum esse	—	—	—
participles		ratiōcināns	ratiōcinātus	ratiōcinātūrus	—	—	ratiōcinandus
verbal nouns		gerund				supine
		genitive	dative	accusative	ablative	accusative	ablative
		ratiōcinandī	ratiōcinandō	ratiōcinandum	ratiōcinandō	ratiōcinātum	ratiōcinātū

Derived terms

• ratiōcinātiō
• ratiōcinium

Descendants

(learned)

• → Catalan: raciocinar
• → French: ratiociner
• → Italian: raziocinare
• → Portuguese: raciocinar
• → Spanish: raciocinar

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.