The paper deals with degrees of grammaticalization of nominal relators in Kazakh, suggesting a new kind of systematic classification. Grammatical relators are understood as free or bound elements occurring after nominals to mark their syntactic functions. Four levels of relators are distinguished: (i) case relators, (ii) opaque postpositional relators, (iii) less grammaticalized relators, and (iv) complex postpositional relators. The four levels represent decreasing degrees of grammaticalization.