Here is the correct matching of definitions to terms:
- concerning the people or languages of Eastern Europe - Slavic
- a mutual, parallel, or corresponding relationship between things - correlation
- collectively, the languages of the Low Countries and of the northern lowlands of Germany - Low German
- the ancient literary language of India - Sanskrit
- the literary and official language used throughout Germany and Austria - High German
- a thing that came before another - predecessor
- a scientist who studies historical records of languages and words - philologist
- the form of the Italic which was spoken in Italy before the Celts migrated westward - Italo-Celtic
- the branch of the Indo-European family of languages that includes the various dialects of Greek - Hellenic
- the group of languages including Hebrew and Arabic - Semitic
- having to do with a group of related languages in India, western Asia, and Europe - Indo-European
- one who studies and compares languages - linguist