Edge Stitch
The edge stitch is the outermost stitch in each row, often worked or slipped in a specific way to give the fabric a neater, more even border.
Explanation
Edge stitches are the outermost stitches on each side of the fabric, and how they are treated has a big impact on how neat the result looks, especially in flat knitting that will be seamed or have a visible edge. Common methods include knitting the edge stitch plain throughout, slipping it purlwise every row for a distinct, braided edge, or purling it for a flatter finish. The choice of edge stitch depends on whether the edge will be sewn, have stitches picked up from it, or remain visible as a finished border, such as on a scarf.