Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
cor-rŏgo (conr-), āvi, ātum, 1, v. a., to bring together by entreaty, to bring together, collect (rare, but in good prose): suos necessarios ab atriis, Cic. Quint. 6, 25; so of personal objects, id. Phil. 3, 8, 20; Quint. 10, 1, 18; Plin. Ep. 2, 14, 9: auxilia ab sociis, Liv. 43, 9, 7: pecuniam ad necessarios sumptus, Caes. B. C. 3, 102: nummulos de nepotum donis, Cic. Verr. 2, 3, 79, § 184: vela cum antennis ex navibus, Liv. 33, 48, 5 al.