ratiocinate

 
Pronunciation: /ˌratɪˈɒsɪneɪt, ˌraʃɪ-/

verb

[no object] formal
  • form judgements by a process of logic; reason: a tendency to ratiocinate in isolation

Derivatives

ratiocination

Pronunciation: /-ˈneɪʃ(ə)n/
noun

ratiocinative

Pronunciation: /-nətɪv/
adjective

ratiocinator

noun

Origin:

mid 17th century: from Latin ratiocinat- 'deliberated, calculated', from the verb ratiocinari, from ratio (see ratio)