Lorette.

About Lorette

A Lorette is a type of 19th-century French prostitute. They stood between the kept women (courtesans) and the grisettes. A grisette had other employment and worked part-time as a prostitute whereas a Lorette supported herself exclusively from prostitution. The lorette shared her favours among several lovers; the Lorette's "Arthurs", as they called them, were not financially able or too fickle to have exclusivity.