Contigno, contignas, contignâre. Plin. To rafter or plaucke a home.Quicquid est contignatum, cratibus consternitur. Cæsar.
Lewis and Short: Latin dictionary
con-tigno, no perf., ātum, 1, v. a. [tignum], to join together with beams, to furnish with beams, joists, or rafters (rare), Caes. B. C. 2, 15; Vitr. 1, 5; Plin. 9, 3, 2, 7.