FUR'ROW, noun [Gr. to plow.] 1. A trench in the earth made by a plow. 2. A long narrow trench or channel in wood or metal; a groove. 3. A hollow made by wrinkles in the face. FUR'ROW, verb transitive 1. To cut a furrow; to make furrows in; to plow. 2. To make long narrow channels or grooves in. 3. To cut; to make channels in; to plow; as, to furrow the deep. 4. To make hollows in by wrinkles. Sorrow furrows the brow.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI