from Latin tripudiāt- ppl. stem of tripudiāre
from tripudium a beating the ground with the feet, a leaping or dancing, a religious dance
1623 - The English Dictionarie, or an Interpreter of Hard English Words, Henry Cockeram;
"Tripudiate, to daunce"
From: Historic Magazine and Notes and Queries:
A Monthly Magazine of History, Folk-Lore, Mathematics, Mysticism, Art, Science, etc.
Volume VIII. 1891
The Arval Brothers