trestle Meaning, Definition & Usage

  1. noun a supporting tower used to support a bridge
  2. noun sawhorses used in pairs to support a horizontal tabletop

WordNet

Tres"tle noun
Etymology
OF. trestel, tresteay, F. tréteau; probably from L. transtillum a little crossbeam, dim. of transtrum a crossbeam. Cf. Transom.
Definitions
  1. A movable frame or support for anything, as scaffolding, consisting of three or four legs secured to a top piece, and forming a sort of stool or horse, used by carpenters, masons, and other workmen; also, a kind of framework of strong posts or piles, and crossbeams, for supporting a bridge, the track of a railway, or the like.
  2. The frame of a table.

Webster 1913