“Bosky” is a literary adjective used to describe a wooded area, specifically covered in trees and shrubs. In Middle English, versions of “bosk,” “busk,” and “bush” all meant “shrub,” which likely came from the German “Busch” (“bush”) and Dutch “bos,” meaning “uncultivated country.” “Bush” became the common spelling for the synonym for “shrub,” but “bosk” stayed in use in the adjective form “bosky,” and it popped up again in the 19th century in a poetic usage as “a small wooded area.”