# Thurneysen's law

> English word · Proper noun

## Definitions
1. A proposed sound law concerning the alternation of voiced and voiceless fricatives in certain affixes in Gothic.

## Etymology
Introduced by comparative linguist Rudolf Thurneysen.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/thurneysen-s-law