Buttonhole Edging Stitch
Used in Cutwork, Richelieu and Renaissance Work, Italian Cutwork, Drawn Thread work, etc. The area to be cut away is outlined with Running Stitch and finished with Buttonhole Stitch. If the fabric frays easily, the shape is finished first and then the fabric cut away. Otherwise the area can be cut and the raw edge Buttonhole Stitched.
Mary Thomas's Dictionary of Embroidery Stitches, p 17-18