■ noun a framework of light wooden or metal bars used as a support for trees or creepers.
■ verb ( ~es , ~ing , ~ed ) [usu. as adjective ~ed ] provide or support with a ~.
Origin
ME (denoting any latticed screen): from OFr. trelis , from L. trilix 'three-ply', from tri- 'three' + licium 'warp thread'.