Dictionary.net

To draw together; to bind with a view to secure and strengthen, as a vessel by passing cables around it; to tighten; as a tackle by drawing the lines together.

To brace by drawing together, as the cords of a drum.

To draw together; to bind with a view to secure and strengthen, as a vessel by passing cables around it; to tighten; as a tackle by drawing the lines together.

To brace by drawing together, as the cords of a drum.

To draw together by ropes crossing each other, with a view to secure and strengthen.

In seamen's language, to cross and draw together the several parts of a tackle to increase the tension; to strengthen by passing a rope around; to undergird.