Lewis Short
sup-palpor (subp-), āri
* V. dep. n., to caress, fondle, or wheedle a little (very rare): occepit ejus matri suppalparier Vino, etc.,Plaut. Mil. 2, 1, 28: suppalpandi nescius,Symm. Ep. 1, 84.
Charlton T. Lewis, Charles Short, A Latin Dictionary