tītillātĭo, ōnis, f. [titillo],
a tickling , titillation : voluptates, quibus quasi titillatic sensibus adhibetur, Cic. N. D. 1, 40, 113: non est voluptatum tanta quasi titillatio in senibus, id. Sen. 14, 47; Hier. Ep. 52, 3: corporis, Sen. Ep. 92, 6.