rator

From the root of reor and ratus +‎ -tor, ultimately from the Proto-Indo-European elements *h₂r̥h₁- (“to arrange, count; to think”) and *-tōr (animate agent suffix).

rator m (genitive ratōris); third declension

1. thinker

Third-declension noun.

• reor

• "rator", in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)