Welsh -af

← Proto-Brythonic *-haβ̃ (inherited)

← Proto-Celtic *-samos (inherited)

← Welsh -ach (mention)

← Welsh teg (mention)

← Welsh tecaf (mention)

← Welsh -a (alter)

← Cornish -a (cognate)

→ Welsh -ach (mention)

→ Welsh mwyaf (affix)

→ Welsh lleiaf (affix)

→ Welsh cyntaf (affix)

→ Welsh diwethaf (affix)

→ Welsh olaf (affix)

→ Welsh nesaf (affix)