vitilitigo
From LSJ
Latin > English (Lewis & Short)
vĭtĭlītĭgo: āre, v. n. vitium-litigo,
I 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.