1690s, from Latin apodyterium "undressing room" (in a bath house), from Greek apodyterion "undressing room," from apodyein "to put off, undress," from apo- "off" (see apo-) + dyein "to put on, enter, go in."
The dressing room, apodyterium, was usually entered from the court through a passageway or anteroom.
The frigidarium serves also as the apodyterium, and is cut up into divans by ornamental wood partitions.
In the generality of modern baths, the frigidarium forms also the apodyterium.
The apodyterium is the best preserved room of the entire building, and also the most ancient.
Along the walls were benches, and above them niches, as in the men's apodyterium.
Similar benches are found in the waiting room at the other end of the apodyterium (X).