NoDemCase: Demonstratives are standalone words, but cannot be marked for case.
(1) tam lɔ̄r-n ūś-ti rāx-l.
this marsh_lake-loc swim-inf allowed-prs.3sg
‘It is allowed to swim in this lake.’ (S. O.)
In Synja Khanty, the case-marking suffixes of demonstratives are the same ones which are attached to nouns; however, demonstratives lack case-marking when in adnominal function (cf. Honti 1984, Onina 2009).