LATIN DICTIONARYLexicon Latīnum
English → Latin

“mistress” in Latin

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

mistress
The female head of a family, materfamilias (opposed to concubina): hera (opposed to the servants; also, hera major; opposed to hera minor, i. e., a daughter of the master of the house; Vid: Plaut., Truc., 4, 3, 22): domina (lady of the house, so called by the master, or by the servants, by way of respect).
A concubine, concubina; pellex (= quae uxorem habenti nubit): amica: to keep a mistress, feminam habere in concubinatu (Ulp.): to be a mistress, in concubinatu esse (Ulp.).

Quick answer

What is the Latin word for mistress?
The usual Latin words for “mistress” are era, dominus, concubīna; also paelex, amīcus. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.