Reconstruction:Proto-Brythonic/seiθ

This Proto-Brythonic entry contains reconstructed terms and roots. As such, the term(s) in this entry are not directly attested, but are hypothesized to have existed based on comparative evidence.

Proto-Brythonic

Proto-Brythonic numbers (edit)
 ←  6 7 8  → 
    Cardinal: *seiθ
    Ordinal: *seɨθβ̃ed

Etymology

From Proto-Celtic *sextam, from Proto-Indo-European *septḿ̥. Alongside *seɨθβ̃ed (ordinal) and *sux, these words were the only known native words failing to debuccalize initial *s-.

Pronunciation

  • IPA(key): /sɛi̯θ/

Numeral

*seiθ

  1. seven

Descendants

  • Old Breton: seith
  • Old Cornish: syth
  • Middle Welsh: seith