tempestuate verb1 •(no longer used) To stir up; to make tempestuous.In truth, as it is said in the second Psalm, God only " laughs " at their rage : that is, He winks, as it were, and leaves them to tempestuate, as though the matter did not at all belong to Him. — 1548 formstempestuated · tempestuating · tempestuates