Reconstruction:Proto-Celtic/dyīus

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 *dyḗws.

Noun

*dyīus m

day

Inflection

The following paradigm is mostly derived from Hamp (1975), namely stage 2 (early Celtic) of his chronology.^[1] His stages afterwards into the attested Insular Celtic forms are rather implausible though. Schrijver reconstructs *dyem for the accusative singular^[2] instead of Hamp's *dyīm.

Consonant stem, irregular
	singular	dual	plural
nominative	*dyīus	*?	*dyowes
vocative	*dyīus	*?	*dyowes
accusative	*d(i)yīm	*?	*dyowams
genitive	*diwos	*?	*diwom
dative	*diwei	*?	*dyubos
locative	*d(i)you	*?	*?
instrumental	*?	*?	*dyubis

Derived terms

*sindū diyū

Descendants

Proto-Brythonic: *dɨð
- Breton: deiz
- Cornish: dydh
- Old Welsh: did
  - Middle Welsh: dyð
    - Welsh: dydd
Old Irish: día
- Irish: dia
- Manx: jee
- Scottish Gaelic: dia

References

^ Hamp, Eric P. (1975) “Varia Etymologica”, in Etudes Celtiques, volume 14, number 2, →DOI, →ISSN, pages 461–477
^ Schrijver, Peter C. H. (1995) Studies in British Celtic historical phonology (Leiden studies in Indo-European; 5), Amsterdam, Atlanta: Rodopi, page 286

[1] Hamp, Eric P. (1975) “Varia Etymologica”, in Etudes Celtiques, volume 14, number 2, →DOI, →ISSN, pages 461–477

[2] Schrijver, Peter C. H. (1995) Studies in British Celtic historical phonology (Leiden studies in Indo-European; 5), Amsterdam, Atlanta: Rodopi, page 286

[1]

[2]