Reconstruction:Proto-Celtic/swīs

This Proto-Celtic 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-Celtic

Etymology

From Proto-Indo-European *wēs, a variant form of *wos, the oblique plural of *túh₂ (“you”).

Pronoun

*swīs (accusative *swes, singular *tū)

1. you pl

Derived terms

• *swiswis

Descendants

• Proto-Brythonic: *hwi
  • Old Breton: hui
    • Middle Breton: huy
      • Breton: c'hwi
  • Cornish: hwi, why
  • Old Welsh: hui
    • Welsh: chwi, chi
• Old Irish: síi, sí
• Gaulish: suis

From reduplicated form *swiswis:

• Proto-Brythonic: *hwihwi
  • Middle Welsh: chwchwi, chwichwi
    • Welsh: chwychwi, chwchwi, chychwi
• Old Irish: sib
  • Irish: sibh
  • Manx: shiu
  • Scottish Gaelic: sibh