Reconstruction:Proto-Celtic/wissus

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 *wéydtus.

Noun

*wissus m

act of discovering, finding out
knowledge

Inflection

Masculine/feminine u-stem
	singular	dual	plural
nominative	*wissus	*wissū	*wissowes
vocative	*wissu	*wissū	*wissūs
accusative	*wissum	*wissū	*wissums
genitive	*wissous	*wissous	*wissowom
dative	*wissou	*wissubom	*wissubos
locative	*?	*?	*?
instrumental	*wissū	*wissubim	*wissubis

Descendants

Proto-Brythonic: *gwɨs
- Welsh: gwŷs
Old Irish: fius, fiuss
- Middle Irish: fis, fiss
  - Irish: fios
  - Manx: fys
  - Scottish Gaelic: fios