Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
grānātus, a, um, adj. [granum], having many grains or seeds: mala, quae Punica vocantur, i. e. a pomegranate, Col. 12, 42, 1.
Hence, subst.: grānātum, i, n., a pomegranate: granata, Col. 12, 46, 2; Plin. 15, 28, 34, § 115; 20, 14, 53, § 149.