Where does “dextrer” come from?
dextrer (English) comes from Old French destrier, from Latin dextrarius, from Latin dexter, from Proto-Italic deksteros, from Proto-Indo-European deḱs(i)-tero-, from Proto-Indo-European deḱs- — right.
dextrer (English): A warhorse; a destrer
Ancestry of “dextrer”, step by step