Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
ē-dento, āvi, ātum, 1, v. a. [dens], to render toothless, knock out the teeth (perh. only in the foll. passages): malas alicui, Plaut. Rud. 3, 2, 48: edentatae beluae morsus, Macr. S. 7, 3.