Stang's law

This article is about the sound law in Proto-Indo-European. For the accentual law in Proto-Slavic, see Ivšić's law.
This article contains characters used to write reconstructed Proto-Indo-European words (for an explanation of the notation, see Proto-Indo-European phonology). Without proper rendering support, you may see question marks, boxes, or other symbols instead of Unicode combining characters and Latin characters.

Stang's law is a Proto-Indo-European (PIE) phonological rule named after the Norwegian linguist Christian Stang.