Lewis Short
morsĭuncŭla (noun F) : dim.2. morsus
* A little bite; a biting with the lips, a kissing (ante- and post - class.): formicarum,App. M. 8, p. 211, 35: teneris labellis molles morsiunculae,kisses,Plaut. Ps. 1, 1, 65.
Charlton T. Lewis, Charles Short, A Latin Dictionary