to cut or lop superfluous or undesired twigs, branches, or roots from; trim.
3.
to rid or clear of (anything superfluous or undesirable).
4.
to remove (anything considered superfluous or undesirable).
Origin: 1400–50; late Middle English prouynen < Middle French proognier to prune (vines), variant of provigner, derivative of provain scion (< Latin propāgin-, stem of propāgō;see propagate)
Origin: 1350–1400; Middle English prunen, pruynen, proy(g)nen < Old French poroign-, present stem of poroindre, equivalent to por- (< Latin pro-pro-1) + oindre to anoint (< Latin unguere); see preen1
1345, from O.Fr. pronne "plum" (13c.), from V.L. *pruna, fem. sing. formed from L. pruna, neut. pl. of prunum "plum," by dissimilation from Gk. proumnon, from a language of Asia Minor. Slang meaning "disagreeable or disliked person" is from 1895.
early 15c., prouyne, from O.Fr. proignier "cut back (vines), prune," of unknown origin, perhaps from Gallo-Romance *pro-retundiare "cut in a rounded shape in front," from pro- "forth" + *retundiare "round off," from L. rotundus (see round). The M.E. word may be via falconry
term proinen "trim the feather with the beak" (late 14c.), Related to preen (q.v.). Related: Pruned; pruning.