Irish sa

← Proto-Celtic *[[in]] [[sindū]]/[[sindai]] (inherited)

← Proto-Celtic *[[in]] [[sindom]]/[[sindam]] (mention)

← Irish [[ins]] [[an]] (mention)

← Old Irish [[issin]][[issind|(d)]] (inherited)

→ Irish agamsa (suffix)

→ Irish leatsa (suffix)

→ Irish ortsa (suffix)

→ Irish ormsa (suffix)

→ Irish asamsa (suffix)

→ Irish liomsa (suffix)