A predicative verb is a verb that behaves as a grammatical adjective; that is, it predicates (qualifies or informs about the properties of its argument). It is a special kind of stative verb.
In the Akkadian languages, the "predicative" (also called the "permansive" or "stative") is a set of pronominal inflections used to convert noun stems into effective sentences, so that the form šarrāku is a single word more or less equivalent to either of the sentences šarrum anāku "I am king" or šarratum anāku "I am queen".[1]
References
↑"Akkadian and Eblaite" by John Huehnergaard and Christopher Woods" in The Cambridge Encyclopedia of the World's Ancient Languages, edited by Roger D. Woodard (2004) ISBN0-521-56256-2, pages 245, 264, and 267.