Welsh ail

← Proto-Brythonic *ėl (inherited)

← Proto-Celtic *alyos (inherited)

← Proto-Indo-European *h₂élyos (inherited)

→ Welsh eil- (mention)

→ Welsh ail- (mention)

→ Welsh eileb (affix)

→ Welsh eilir (compound)

→ Welsh eiliad (suffix)

→ Welsh ail ar bymtheg (compound)

→ Welsh ail ar hugain (compound)

→ Irish dara (cognate)