ratiocinate
/ˌɹætiˈosəˌneɪt/ verb
Forms ratiocinates ratiocinating ratiocinated
- verb (transitive, intransitive, formal) To use the powers of the mind logically and methodically; to reason.
Etymology
From Latin ratiōcinor (“to reckon, argue”) + -ate, from ratiō + -cinor. First use appears c.1643 in the writings of Kenelm Digby.
Webster’s 1913
Etymology [L. ratiocinatus, p. p. of ratiocinari, fr. ratio reason. See Ratio.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “ratiocinate”, CC BY-SA 4.0. Details