Function: noun
Date: 1824
: a syntactic construction in English in which possession is marked both by the preposition of and a noun or pronoun in the possessive case (as in “ A friend of Bob's is a friend of mine ” ) ― called also double possessive
DOUBLE GENITIVE
Meaning of DOUBLE GENITIVE in English
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012