treillage
noun
treil·lage tre-ˈyäzh 
: latticework for vines : trellis sense 1
Example Sentences
Recent Examples on the Web When covered in treillage (painted in Nantucket Gray by Benjamin More, with the slightest hint of green), the structure takes on an extra element of ornamentation. 
Hadley Keller, House Beautiful, 29 May 2020 The inspiration for the treillage actually came from Bunny Mellon's Manhattan townhouse. Barbara King, House Beautiful, 24 Mar. 2015 My thought was to impart the language of the Lyford Cay Club—which is much more Brighton Pavilion than a typical Caribbean Colonial house — with this amazing treillage. Barbara King, House Beautiful, 3 Nov. 2014
Hadley Keller, House Beautiful, 29 May 2020 The inspiration for the treillage actually came from Bunny Mellon's Manhattan townhouse. Barbara King, House Beautiful, 24 Mar. 2015 My thought was to impart the language of the Lyford Cay Club—which is much more Brighton Pavilion than a typical Caribbean Colonial house — with this amazing treillage. Barbara King, House Beautiful, 3 Nov. 2014 Word History
Etymology
French, from Middle French, from treille vine arbor — more at trellis
First Known Use
1698, in the meaning defined above