demimondaine

Borrowed from French demi-mondaine.

demimondaine (plural demimondaines)

1. A sexually promiscuous woman (of the demimonde)
   • 1936: Like the Phoenix by Anthony Bertram

     However, terrible as it may seem to the tall maiden sisters of J.P.'s in Queen Anne houses with walled vegetable gardens, this courtesan, strumpet, harlot, whore, punk, fille de joie, street-walker, this trollop, this trull, this baggage, this hussy, this drab, skit, rig, quean, mopsy, demirep, demimondaine, this wanton, this fornicatress, this doxy, this concubine, this frail sister, this poor Queenie--did actually solicit me, did actually say 'coming home to-night, dearie' and my soul was not blasted enough to call a policeman.