Illustrated Companion to the Latin Dictionary/Tignum

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

TIGNUM. Generally, a beam or timber for building; but the term is more specially used to designate the tiebeams in the timber work of a roof (Vitruv. iv. 2. 1.); which are placed across the architrave or main beam (trabs); as shown by the plan s. MATERIATIO, on which they are marked ddddd. These form the principal beams of the soffit in the interior of a building; and in stone edifices of the Doric order, their extremities are represented externally by the triglyphs; but in Ionic and Corinthian elevations, they are not accounted for externally, being entirely concealed by the slabs of the continuous frieze (zophorus) which covers them.