Columbia subject headings:
Indo-European languages--Etymology--Names--Congresses.
Names, Geographical--Europe--Congresses.
Names, Personal--Europe--Congresses.
Harvard subject headings:
Indo-European languages--Etymology--Names--Congresses.
Names, Geographical--Europe--Congresses.
Names, Personal--Europe--Congresses.
Princeton subject headings:
Names, Geographical--Congresses.
Names--Congresses.