arborize

Verb

arborise (third-person singular simple present arborises, present participle arborising, simple past and past participle arborised)

1. (intransitive) To develop a tree-like appearance.
   • The nerve fibre arborises into multiple branches.
2. (transitive) To cause (something) to develop a tree-like appearance.
   • Tall, wide shrubs take up a huge amount of space in a small garden, so remove the lower limbs to provide more space underneath. […] When you “arborize” the shrub by limbing it up, you’ll discover an elegant, multi-trunked structure […]2008, Jen Weaverling, editor, Creative Flower Gardening, Minnetonka, MN: National Home Gardening Club, page 128
3. (transitive) To penetrate or fill (an area) with a tree-like structure.
   • The imitation neurones I am composed of agitate their dendrites like mad ganglia that arborize the system as the cell bodies dance along the axis cylinder within the fibres of the foot that isn’t there […]1967, Christine Brooke-Rose, “The Foot”, in Susan Williams, Richard Glyn Jones, editors, The Penguin Book of Modern Fantasy by Women, London: Penguin, published 1996, page 187