pulsion
noun
pul·sion
ˈpəlshən
plural -s
: the act or action of pushing or driving : propulsion
these undirected and hence uncoordinated pulsions, so prevalent in childhood
H. A. Murray
—opposed to traction H. A. Murray
Word History
Etymology
Late Latin pulsion-, pulsio, from Latin pulsus (past participle of pellere to beat, drive, push) + -ion-, -io -ion