The compound adjective "wood-fired" is a modern, transparent combination of two native English elements. "Wood" originates from the Old English wudu, a common Germanic term for both trees and the material derived from them, reflecting its fundamental role as a resource. "Fired" derives from the Old English noun fȳr, which itself has deep Proto-Germanic roots related to combustion and heat. The compound logically follows the pattern of fuel-source + "-fired" (e.g., coal-fired, gas-fired), directly describing the method of heating or operation by specifying the combustible material—wood—that is burned to generate the necessary energy.

Structure: wood (material) + fired (heated) - wood: From Old English wudu, meaning "tree, forest, grove; the substance of which trees are made." In this compound, it denotes the material used as fuel. - fired: From the past participle of the verb fire, from Old English fȳr (noun) "fire." In this compound, it functions as an adjective meaning "heated, operated, or powered by burning."