Germanic sound shifts

Germanic sound shifts are the phonological developments (sound changes) from the Proto-Indo-European language (PIE) to Proto-Germanic, in Proto-Germanic itself, and in various Germanic subfamilies and languages.

PIE to Proto-Germanic

 * Germanic spirant law
 * Grimm's law
 * Holtzmann's law
 * Sievers' law
 * Verner's law
 * Kluge's law

In Proto-Germanic

 * Germanic a-mutation

Germanic subfamilies and languages

 * Germanic umlaut (all of the early languages except for Gothic)
 * Great Vowel Shift (English)
 * High German consonant shift
 * Ingvaeonic nasal spirant law (attested in Old English, Old Frisian and Old Saxon)
 * West Germanic gemination