Glossary of sound laws in the Indo-European languages

This glossary gives a general overview of the various sound laws that have been formulated by linguists for the various Indo-European languages.

A concise description is given for each rule; more details are given in their respective articles.

Proto-Indo-European homeland
Extent of modern Indo-European languages in Europe and Asia
A map of the Albanian dialects
A 14th-century manuscript of the canonical Gospels from the Monastery of St. Jovan Bigorski written in Old Church Slavonic , a liturgical Slavic language used in Eastern Christianity
A traditional song sung in Irish , a Celtic language descended from Old Irish
A map of Germanic languages at the beginning of the 1st century AD
North Germanic
North Sea Germanic , or Ingvaeonic
Weser–Rhine Germanic , or Istvaeonic
Elbe Germanic , or Irminonic
East Germanic †
A map of Ancient Greek dialects
A student in Texas speaking Persian , an Indo-Iranian language
The Praeneste fibula is a golden brooch which contains an inscription considered to be the oldest surviving example of Old Latin , dated to the first half of the 7th century BC. [ 126 ]