The Collaborative International Dictionary
Succussation
Succussation \Suc`cus*sa"tion\, n. [L. succussare to jolt, v. intens. fr. succutere, succussum, to fling up from below, to toss up; sub under + quatere to shake.]
A trot or trotting. [Obs.]
--Sir T. Browne.A shaking; succussion.
Wiktionary
succussation
n. 1 (context obsolete English) Violent shaking or jolting. 2 (context obsolete English) A trot or trotting.