I. ˈtrelə̇s noun
( -es )
Etymology: Middle English trelis, from Middle French treliz fabric of coarse weave, trellis, from (assumed) Vulgar Latin trilicius woven with triple thread, from Latin trilic-, trilix — more at drilling
1.
a. : a structure or frame of latticework used as a screen or as a support for climbing plants
b. : a construction (as a bower or summerhouse) chiefly or wholly of latticework
c. : an arrangement that forms or gives the effect of a lattice
a trellis of interlacing streams
2. : a modification of the lattice in heraldic depiction in which the pieces are shown as nailed at the joints without interlacing
II. transitive verb
( -ed/-ing/-es )
Etymology: Middle English trelesen, from trelis trellis
1. : to provide with a trellis ; especially : to train (as a vine) on a trellis
2. : to cross or interlace on or through : interweave
an ornate design trellised the wall
III. adjective
Etymology: Middle English trelis, from trelis, n.
: having a latticed arrangement
a trellis drainage pattern