📜 Theorem, law or theory

Verner's law

Ley de Verner

Date
1875 · confidence high
Place
Copenhagen, Denmark
Credited to
Karl Verner
Field
Knowledge & symbols

What was discovered

A phonetic law explaining the exceptions to Grimm's law in Proto-Germanic: voiceless fricatives became voiced when following an unstressed syllable. It resolved an anomaly that seemed to contradict the regularity of sound change.

Published in 1877; formulated by Verner in 1875 after studying irregularities between Sanskrit and Greek versus Germanic.

What it led to

  • Consolidation of the principle of regularity in sound change
  • The birth of rigorous historical linguistics (the Neogrammarians)

Built on

  • Grimm's law

Links

Sources✓ verified 2026-09-28