Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
gesta, ōrum, n. [gero, II. B. 3.], deeds, acts (rare for res gestae): obscuriora sunt ejus gesta, Nep. Timoth. 4, 6; id. Hann. 13, 3; Sisenn. ap. Gell. 12, 15, 2; Liv. 8, 40, 5: fide gestorum comprobatā, Vet. Cuj. Jurec. Consult. 9, 6 Huschke; David, Vulg. 1 Par. 29, 29; 1 Macc. 13, 42.