FromClassical Latinrēgnum(“royal power; kingship”), derived fromrēx(“king”).

• IPA^(key):/ˈren.nu/

rennu m (pluralrenni)(Old Sardinian)

1. a (Sardinian)judicature,judgedom

   Synonyms:(Logudorese)giudicadu,(Nuorese)zudicau,(Campidanese)giudicau

2. publicproperty
3. publictreasury

• arrennare

• Wagner, Max Leopold (1960–1964) “rénnu”, inDizionario etimologico sardo, Heidelberg