The word 'tilling' originates from the Old English verb tilian, which meant "to labor, strive for, or cultivate land." This Old English term is related to the Old Norse telgja (to work) and the Old High German zilōn (to strive), all pointing to a common Germanic root associated with purposeful effort and work. Over time, the meaning of 'till' specialized from general labor to the specific agricultural work of preparing soil. The addition of the '-ing' suffix, a common Germanic nominalizer, transforms the action into a noun denoting the process itself, thus 'tilling' logically encapsulates the entire activity of working the land for cultivation.

Structure: till (to plow) + ing (noun suffix) - till: From Old English tilian meaning "to strive for, work at, cultivate". Its functional role is the core verb root indicating the action of cultivation. - ing: A suffix of Germanic origin used to form nouns from verbs, indicating the action or process.