Columbia subject headings:
English language--Grammar, Historical.
English language--Syntax.
Historical linguistics.
Scots language.
Sociolinguistics.
Harvard subject headings:
English language--Grammar, Historical
English language--Syntax
Historical linguistics.
Scots language.
Sociolinguistics.
Princeton subject headings:
English language--Dialects--Scotland.
English language--Grammar, Historical.
Historical linguistics.
Sociolinguistics.