Lewis Short
pampĭnātĭo (noun F) : pampino
* A breaking off of superfluous tendrils and leaves of vines, a lopping or trimming of vines: ut frequenti pampinatione supervacua detrahantur,Col. 4, 6, 1; cf. id. 4, 6, 1, § 5; 4, 7, 1; 4, 28, 1; Plin. 17, 1, 1, § 7: prima,Col. 11, 2, 38: verna,Plin. 17, 22, 35, § 190.
Charlton T. Lewis, Charles Short, A Latin Dictionary