Genitive

n. [Lat. genitivus, from gignere, genitum, to beget; Fr. génitif, Pr. genitiu, Sp., Pg., & It. genitivo.] (Gram.) A case in the declension of nouns, designating primarily that from which something else proceeds, and expressing the relation of origination, source, and the like, or such as are expressed in English by of.