Reconstruction:Proto-Celtic/kaɸerūxs

Etymology
Possibly from an extension of (compare ), and thus cognate with 🇨🇬 and 🇨🇬; but the -ɸr- is difficult to explain as it normally should have become -br- in Proto-Celtic.

Stifter proposes a stem-ablaut variant of, *kápero-, which then compounded with a zero-grade form of to form a root noun kaperoh₃kʷs. -oh₃- would regularly yield -ū- in a final syllable and -ā- elsewhere. The Brittonic forms would thus show a back-formation from the nominative singular, as a stem-final labial stop was not yielded.

Noun

 * 1) sheep