Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
ēmendātor, ōris, m. [emendo], a corrector, amender, Cic. Balb. 8, 20; id. Phil. 2, 17 fin.; id. Brut. 74, 259; Plin. Pan. 6, 2; id. Ep. 6, 5, 4; Vulg. Sap. 7, 15.