📜 Theorem, law or theory

Glottalic theory of Proto-Indo-European (Gamkrelidze and Ivanov)

Teoría glotálica del indoeuropeo (Gamkrelidze e Ivánov)

Date
1972-1973 · confidence high
Place
Tbilisi, Georgia
Credited to
Tamaz Gamkrelidze and Vyacheslav Ivanov (with Paul Hopper, independently)
Field
Communication

⚠️ Disputed: the sources disagree.

What was discovered

A proposal that the reconstructed «plain voiced» stops (*b, *d, *g) of Proto-Indo-European were actually glottalised (ejective), resolving the typological oddity of the traditional system. Gamkrelidze and Ivanov developed it in Tbilisi drawing on Kartvelian.

It is not a generally accepted theory: most specialists keep the traditional reconstruction and the proposal is still debated. Their Anatolia-Armenia homeland hypothesis (1984) competes with Gimbutas's Kurgan hypothesis.

What it led to

  • debate over reconstructed Indo-European phonology
  • the Anatolia-Armenia hypothesis as Indo-European homeland (1984)
  • the relation between Indo-European and Kartvelian languages

Links

Sources✓ verified 2026-11-04