Why this word is great
FRIGIDARIUM — [Noun] In Ancient Roman baths, a room with a bath of cold water. From the Latin frīgidārium, from frīgidus ("cold") + -ārium ("place for"). Unlike the tepidarium (which coddles with warmth) or the caldarium (which scalds with steam), the frigidarium is a bracing shock to the system—a plunge into clarity. It is the marble floor slick with condensation, the gasp of breath stolen by icy water, the sudden dilation of pores as the body remembers it is alive. The Romans knew: every pleasure must end in cold truth.