Old Irish solus

← Old Irish so (prefix)

← Old Irish lés (prefix)

← Old Irish dolus (mention)

→ Breton sellout (cognate)

→ Welsh syllu (cognate)

→ Irish solas (inherited)

→ Scottish Gaelic solas (inherited)

→ Scottish Gaelic seall (cognate)

→ Manx sollys (inherited)

→ Middle Irish solus (inherited)

→ Middle Irish dolus (cognate)

→ Old Irish lés (link)

→ Old Irish soilse (affix)

→ Old Irish follus (affix)