Columbia subject headings:
English language--Etymology--Dictionaries.
English language--Roots--Dictionaries.
English language--Word formation--Dictionaries.
Harvard subject headings:
English language--Etymology--Dictionaries
English language--Roots--Dictionaries.
English language--Word formation--Dictionaries.
Princeton subject headings:
Dictionaries.
English language--Etymology--Dictionaries.
English language--Roots--Dictionaries.
English language--Word formation--Dictionaries.