from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun linguistics A member of a 19th-century school of German
linguistswho first advanced the theory of regular sound change; or a follower of that school.
from Wiktionary, Creative Commons Attribution/Share-Alike License
However the Neogrammarian Hypothesis regarding sound shifts that they are regular and exceptionless has allowes us to elucidate the genetic relationships between languages, poetic elements, and so forth to a degree not otherwise possible.
The thesis that “Sound-laws have no exceptions” is the best known Neogrammarian thesis.