Illustrated Companion to the Latin Dictionary/Janua

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. 

JA'NUA (αὔλειος θύρα). Strictly, the front or street door of a private house (Cic. N. D. ii. 27. Serv. ad Virg. Aen. i. 449. Vitruv. vi. 7. 1.), as constradistinguished from porta, the gate of a town, &c., and from ostium, a door in the interior; but these nice distinctions are not always observed. The illustration (Janua/1.1) represents a doorway belonging to one of the houses at Pompeii, with the door itself, and panelling restored from a marble door in the street of the tombs, carved in imitation of wooden panels. The whole design consists of the following component parts; the sill, or threshold, raised a step above the pavement (limen); the lintel above (supercilium, jugumentum or limen superum); the door posts which support it (postes); the door leaves (fores), each of which is composed of the following parts; two uprights, one on each side of the leaf, technically termed the "stiles" by our carpenters (scapi); four transverse pieces, which our carpenters call the "rails" (impagines), dividing the whole into three separate panels (tympana).

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  Janua/1.1