arborator

Latin, from arbor (“tree”).

arborator (plural arborators)

1. A person who plants, prunes and takes care of trees
   • 1664, J[ohn] E[velyn], Sylva, or A Discourse of Forest-trees and the Propagation of Timber in His Majesties Dominions. […], London: […] Jo[hn] Martyn, and Ja[mes] Allestry, printers to the Royal Society, […], →OCLC:

     In the time of this work , our ingenious Arborator should frequently incorporate , mingle , and unite the arins and branches of some young and Mexible trees