Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
* vĭtĭlītĭgo, āre, v. n. [vitium-litigo], to quarrel disgracefully, to brawl, wrangle to abuse, calumniate: scio ego, quae scripta sunt, si palam proferantur, multos fore qui vitilitigent, Cato ap. Plin. praef. § 30; cf. vitilitigator.