SuperlativeCase expresses that the referent of the noun it marks is the location onto which another referent is moving. It has the meaning of 'onto'. Kibrik says that Archi (aqc) possesses a nominal spatial form expressing SuperlativeCase, namely -t:ik. He gives the example 'aInš-li-t:-ik' ('aIns' = 'apple'). [Kibrik 1998: 470-471] Unfortunate name clash with 'Superlative' as a property of adjectives.