Darning is a sewing technique for repairing holes or worn areas in fabric or knitting using needle and thread alone. It is often done by hand, but it is also possible to darn with a sewing machine. Hand darning employs the darning stitch, a simple running stitch in which the thread is `woven` in rows along the grain of the fabric, with the stitc..... Found on http://en.wikipedia.org/wiki/Darning
A technique used by “scribbling” the needle over a torn section of fabric or a hole to do a repair. This requires a darning foot so the feed dogs will not direct the fabric. Found on https://www.nationalsewingcircle.com/article/sewing-terms/#