ratiocinate

[ rash-ee-os-uh-neyt, -oh-suh-, rat-ee- ]
/ ˌræʃ iˈɒs əˌneɪt, -ˈoʊ sə-, ˌræt i- /

verb (used without object), ra·ti·oc·i·nat·ed, ra·ti·oc·i·nat·ing.

to reason; carry on a process of reasoning.

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Origin of ratiocinate

First recorded in 1635–45; from Latin ratiōcinātus, past participle of ratiōcinārī “to reckon, calculate, conclude,” verbal derivative of ratiō “reason”

OTHER WORDS FROM ratiocinate

ra·ti·oc·i·na·tor, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for ratiocinate

British Dictionary definitions for ratiocinate

ratiocinate
/ (ˌrætɪˈɒsɪˌneɪt) /

verb

(intr) to think or argue logically and methodically; reason

Derived forms of ratiocinate

ratiocination, nounratiocinative, adjectiveratiocinator, noun

Word Origin for ratiocinate

C17: from Latin ratiōcinārī to calculate, from ratiō reason
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012