What is over and over; -- applied to a style of sewing, or to a seam, in which two edges, usually selvedges, are sewed together by passing each stitch over both called?

overhand — (Sewing) Over and over; -- applied to a style of sewing, or to a seam, in which two edges, usually selvedges, are sewed together by passing each stitch over both. (Webster's 1913.)