CELLA was also used for the lodge or habitation of a common prostitute, as being anciently under ground, hence also denominated fornix.

Intravit calidum veteri centone lupanar,
Et cellam vacuam.
Juv. Sat. vi. ver. 127.

On which place an ancient scholiast remarks, that the names of the whores were written on the doors of their several cells; by which we learn the meaning of inscripta cella in Martial, lib. xi. ep. 46.