1.A ladder or any contrivance for making an ascent. The usual form of ancient ladder was identical with our own, as shown in the annexed illustration.
2.A ship's ladder, let down the side of a vessel, as shown below.
3.The staircase in a house, usually constructed like our own (Livy, xxxix. 14). Sometimes they were enclosed by side-walls, so that the person using the stair was concealed. These were called “Greek stairs” (scalae Graecae, Vitruv. ix.
Praef.(Roman fresco painting.)