Old Irish sáer

← Proto-Celtic *saɸiros (inherited)

← Proto-Indo-European *sapiros (inherited)

← Proto-Indo-European *sap- (inherited)

← Old Irish saírse (link)

→ Irish saor (inherited)

→ Irish saoirseacht (mention)

→ Scottish Gaelic saor (inherited)

→ Manx seyr (inherited)

→ Old Irish saírse (mention)