stĭmŭlātĭo, ōnis, f. [stimulo],
a pricking on , incitement , stimulation (post-Aug.): ingens, Plin. 35, 2, 2, § 7: privata cuique, Tac. H. 1, 90 fin.
stimulātiō ōnus, f stimulo, an incitement, stimulation : privata, Ta. ...
An Elementary Latin Dictionary