Overhand knot—to prevent unraveling of rope, starting of a square knot; also a stop knot.
Use the square knot in tying to make sure that it will not slip.
The hard knot most people tie is not quite the same as the square knot, though it does resemble it.
The square knot is the one used by surgeons in ligating vessels and securing bandages.
square knot: A quick knot to tie two ends of rope together that will not slip.
There are three kinds of knots—the overhand knot, the square knot and the "Granny" knot.
Bowknot—is tied like the square knot, but with ends doubled back in tying the latter half—used on neckties and ribbons.
Tie the single ends with a square knot, and fringe them out; leave the loop.
Always tie the bandage with a square knot to prevent slipping.
Next bring those two pieces up over and tie them together in a square knot, as shown in Figs. 85 and 86.