Why this word is great
RATIOCINATE — [Verb] To reason methodically and logically, especially through a formal process of inference. From Latin ratiōcinārī ("to reckon, calculate, argue"), from ratiō ("reason, calculation") + the suffix -cinārī (as in vāticinārī, "to prophesy"), meaning "to engage in reasoning." Unlike "speculate," which implies a flight of conjecture on shaky evidence, or "ponder," which suggests deep but unstructured thought, to ratiocinate is to proceed along a linear path of premises. It is the crisp click of abacus beads in a quiet study, the stark procession of a geometric proof across a chalkboard, the detective linking disparate clues into a single chain of causality—a conscious imposition of order upon the clamor of the world, performed in the faith that the machinery of logic will eventually yield an answer.