Welsh Saeson

← Proto-Brythonic *Seis (inherited)

← Proto-Brythonic *Saïson (mention)

← Proto-West Germanic *sahs (derived)

← Latin Saxō (derived)

← Latin Saxōnēs (mention)

→ Welsh Saesneg (suffix)

→ Welsh Saesnes (suffix)

→ Welsh Seisnig (suffix)