(grammar) A term that may sometimes be used to describe thecase marking apredicative nominative (a noun that renames the subject often following a linking verb), or for the adjective that agrees with it (predicative adjective).
2001, Barry J. Blake,Case, page95:
Hjelmslev also notes that in Tabassaran, a Daghestan language of the Caucasus, a language with a very large case system (see section 5.6), there is apredicative case marked by -u-, -ä- or -ö-.
2004, William R. Schmalstieg, Philip Baldi, Pietro U. Dini,Studies in Baltic and Indo-European linguistics, page88:
The conclusion could be formulated as follows: in Common Baltic, there was probably a certain marginal use of the instrumental as a markedpredicative case alongside the nominative.
2005, "Paul Bartlett" (username), "New (?) conlang", inalt.language.artificial,Usenet:
Even Arie deJong's revision of Volapük addded[sic] apredicative case.
