furrowed

The word 'furrowed' originates from the Old English noun furh, meaning a trench or ditch, which is itself derived from the Proto-Germanic furh- and can be traced further back to the Proto-Indo-European root perk-, meaning "to dig". The literal sense of cutting a groove into the earth with a plow provides the foundational image. Over time, this concrete action was metaphorically extended to describe the similar appearance of deep wrinkles on the human brow, as if worry or thought had "plowed" lines into the skin. The addition of the adjectival suffix '-ed' transforms the noun/verb into a descriptive term, solidifying its modern meanings related to being marked by grooves or wrinkles.

Structure: furrow + ed - furrow: From Old English furh (a trench, ditch). The functional role is the core noun/verb root meaning a trench or groove. - ed: From Old English -od, -ad, a suffix forming the past tense of weak verbs and adjectives from nouns/verbs, indicating a state or condition. Its functional role is a participial/adjectival suffix meaning "having the quality of" or "characterized by".