Columbia subject headings:
Comparative linguistics.
Grammar, Comparative and general--Case.
Historical linguistics.
Harvard subject headings:
Grammar, Comparative and general--Morphology.
Greek language--Grammar.
Greek language--History.
Historical linguistics.
Latin language--Grammar.
Latin language--History.
Metaphor
Sanskrit language--Grammar.
Sanskrit language--History.
Vedas. R̥gveda--Criticism, interpretation, etc.
Vedic language--Grammar.
Princeton subject headings:
Grammar, Comparative and general--Morphology.
Greek language--Grammar.
Greek language--History.
Historical linguistics.
Latin language--Grammar.
Latin language--History.
Metaphor.
Sanskrit language--Grammar.
Sanskrit language--History.
Vedas. R̥gveda--Criticism, interpretation, etc.
Vedic language--Grammar.