Grimm's Law
Version 1.0.0 · Updated 2026-07-28
CORE DEFINITION
Grimm's law is the first discovered regular sound change, which led to the birth of historical phonology as an independent discipline. In 1806, Schlegel first noticed the correspondence between Latin p and Germanic f. In 1818, Rasmus Rask extended this law to other Indo-European languages such as Sanskrit and Greek, and included all consonants. In 1822, Jacob Grimm published this law in his book "Deutsche Grammatik", extending it to include standard German. He noticed that this rule still could not explain the consonants of many words; these exceptions puzzled linguists for decades, but were eventually explained by the Danish linguist Karl Verner, becoming Verner's law.
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Grimm's law is the first discovered regular sound change, which led to the birth of historical phonology as an independent discipline. In 1806, Schlegel first noticed the correspondence between Latin p and Germanic f. In 1818, Rasmus Rask extended this law to other Indo-European languages such as Sanskrit and Greek, and included all consonants. In 1822, Jacob Grimm published this law in his book "Deutsche Grammatik", extending it to include standard German.
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Describes the regular sound changes of Proto-Indo-European stops in Germanic languages (supplement to Grimm's law), explaining sound correspondences. Sound changes are regular.
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- zh.wikipedia.orghttps://zh.wikipedia.org/wiki/%E6%A0%BC%E6%9E%97%E5%AE%9A%E5%BE%8Bverified
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