Where does “scoutmistress” come from?
scoutmistress (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.
scoutmistress (English): A female scoutmaster
Ancestry of “scoutmistress”, step by step