Arboreal

Part of speech: adjective

Pronunciation: /ɑɹˈbɔɹi.əl/

Definitions

1. Pertaining to trees, this adjective refers to both creatures that inhabit tree environments and the characteristics of forested ecosystems
2. This descriptive term indicates life forms that thrive among trees and suggests features inherent to wooded areas
3. Connected with or living in trees, especially for animals that spend most of their life in the branches or canopy

Etymology: Latin "arbor" meant "tree," and its adjective "arboreus" meant "tree-like," the sense that gave English its word. The English word itself is a mid-17th-century formation, so the Latin adjective already existed, and English simply added the suffix "-al" to it, a common pattern for turning Latin-derived stems into English adjectives. The result describes creatures and plants that spend their lives in trees, such as monkeys, birds, and many insects. The surprising part is how plainly the word tells its story: its meaning is literally its make-up, with no sense drift to follow. Anyone who knows the Latin "arbor" can read "arboreal" as "tree-ish" almost at once, and the same root turns up in "arbour," a shaded garden of trees, which entered English earlier through Old French.

Synonyms: tree-dwelling, branching

Antonyms: terrestrial