This paper constitutes the first linguistic analysis of nominal possessive constructions in late nineteenth- and early twentieth-century Hasidic Hebrew hagiographic tales. Such analysis is necessary because it sheds much-needed light on the grammatical structure of this prominent but largely unstudied early modern Eastern European form of Hebrew. Hasidic Hebrew possessive constructions exhibit a variety of noteworthy features, namely non-standard uses of the construct chain including definiteness of the construct noun, double definiteness, and split construct chains; construct chains with adjectives in the absolute position; the productiveness and widespread use of the construct chain; the tendency to favour the post-Biblical Hebrew possessive particle של shel only in certain syntactic contexts; and the employment of the Aramaic particle ד- de- specifically to express geographical and temporal relationships. These phenomena reflect a mix of various strata of Hebrew as well as Aramaic, Yiddish, and independent elements that combine to form a unique system distinct from other varieties of Hebrew.