Columbia subject headings:
Harvard subject headings:
France--Civilization--1000-1328.
France--Civilization--1328-1600.
French language--Middle French, 1300-1600--Etymology.
French language--Middle French, 1300-1600--Social aspects.
French language--To 1300--Etymology.
French language--To 1300--Social aspects.
Social history--Medieval, 500-1500
Princeton subject headings:
French language--History.
French language--Vocabulary.