Columbia subject headings:
Harvard subject headings:
French language--Gender.
French language--Grammar, Comparative--Spanish.
French language--Word formation.
Spanish language--Gender.
Spanish language--Grammar, Comparative--French.
Spanish language--Word formation.
Princeton subject headings:
French language--Compound words.
French language--Suffixes and prefixes.
French language--Word formation.
Spanish language--Compound words.
Spanish language--Suffixes and prefixes.
Spanish language--Word formation.