volutation
A circular movement; a rolling, wallowing, circulation or rotation.
obsolete
But, yet He hath left us rather a Confusion, than logical Discrimination of the species of Violent motion; for, Collision and Pulsion are one and the same thing; and Vection may be performed either by Pulsion or Traction, insomuch as the thing movent doth not forsake the thing pulsed, or drawn, but constantly adhæreth unto it; and as for Volutation; it is both Pulsion and Traction at once, as may be easily conceived by any man who seriously considers the manner thereof.
Where it comes from
From Latin volutatio, from volutare (“to roll, wallow”), verb frequentative volvere, volutum (“to roll”).
Adapted from the Wiktionary entry volutation (CC BY-SA 4.0).