Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
vendĭtātor, ōris, m. [vendito, an offering for sale; hence, trop.], a boaster, vaunter, braggart (post-Aug. and very rare): famae nec incuriosus nec venditator, Tac. H. 1, 49 med.: Sallustianae lectionis, Gell. 18, 4, 1.