Trussing
Trussing , noun
1.
(Architecture & Engineering) The timbers, etc., which form a truss, taken collectively. — Weale
2.
(Architecture & Engineering) The art of stiffening or bracing a set of timbers, or the like, by putting in struts, ties, etc., till it has something of the character of a truss.
3.
The act of a hawk, or other bird of prey, in seizing its quarry, and soaring with it into air. [Obsolete]