ratiocinator
From LSJ
οὕτω τι βαθὺ καὶ μυστηριῶδες ἡ σιγὴ καὶ νηφάλιον, ἡ δὲ μέθη λάλον → silence is something profound and mysterious and sober, but drunkenness chatters
Latin > English (Lewis & Short)
rătĭōcĭnātor: ōris, m. id.,
I a reckoner, computant, accountant, i. q. calculator.
I Lit., Cic. Att. 1, 12, 2; Col. 3, 3, 7; Dig. 14, 4, 5, § 16.—
II Trop.: ut boni ratiocinatores esse possimus et addendo deducendoque videre, quae reliqui summa fiat, Cic. Off. 1, 18, 59; Aug. Civ. Dei, 21, 5.
Latin > French (Gaffiot 2016)
rătĭōcĭnātŏr,¹⁶ ōris, m. (ratiocinor), calculateur : Cic. Off. 1, 59 ; Att. 1, 12, 2.