The compound adjective 'wood-burning' is a transparent modern English formation. Its first element, 'wood', derives from the Old English 'wudu', a term of Germanic origin referring broadly to trees and the material derived from them. The second element, 'burning', is the present participle of the verb 'burn', from Old English 'bærnan' (to cause to burn) and 'beornan' (to be on fire), both with deep Proto-Germanic roots. Combined, the term follows a straightforward descriptive logic: it denotes an object or process characterized by the action ('-ing') of burning ('burn') the specified material ('wood'). This logical construction efficiently creates a specialized term for technology (e.g., stoves) and art (e.g., pyrography) centered on the combustion of wood.

Structure: wood (material) + burn (process) + ing (adjective suffix) wood: Old English origin (wudu), meaning "tree, grove; the substance of trees." Functions as a noun root specifying the material. burn: Old English origin (bærnan, beornan), meaning "to be on fire, to consume by fire." Functions as a verb root specifying the action. ing: Old English origin (ende, -ing), a suffix forming present participles and adjectives from verbs, indicating "characterized by the action of."