Where does “mistressless” come from?
mistressless (English) comes from English Mistress, from Middle English maistresse, from Old French maistresse, from Old French maistre, from Latin magister, from Proto-Italic magisteros, from Proto-Indo-European méǵh₂isteros, from Proto-Indo-European méǵh₂s — big, great.
mistressless (English): Without a mistress
Ancestry of “mistressless”, step by step