Etymograph > Indo-European > Proto-Indo-European > Phoneme

Graphemes:
Classes: voiced labiovelar stop
Implicit classes: obstruent consonant C
Features +voice -sonorant -continuant

Related rules

Development: Ancient Greek

  • grk-thorn-clusters: {tḱ|tk} > kt, dʰgʰ > χθ, dʰgʷʰ > φθ
  • grk-aspirate-devoicing: bʰ > φ, dʰ > θ, ǵʰ > χ, gʰ > χ, gʷʰ > χʷ