Lewis Short
(verb) : pampĭno, āvi, ātum, 1, id.
* To pluck or lop off the superfluous tendrils, shoots, and leaves of vines, to trim vines.
* Lit.: pampinare est ex sarmento coles qui nati sunt, de iis qui plurimum valent, primum ac secundum, nonnumquam etiam tertium relinquere, reliquos decerpere,Varr. R. R. 1, 31, 2; Cato, R. R. 33, 3: pampinandi modus,Col. 5, 5, 14: vineas,Plin. 18, 27, 67, § 254; Col. Arb. 11.
* Transf., in gen., to trim or prune trees: salix non minus, quam vinea pampinatur,Col. 4, 31, 2; 5, 10, 21; 11, 2, 79 saep.
Charlton T. Lewis, Charles Short, A Latin Dictionary