Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
‡ quā̆drĭvĭus, a, um, adj. [quadrusvia], of the cross-roads, only in the phrase DIS or LARIBVS QVADRIVIIS (sometimes QVADRIBIS), Inscr. Orell. 389; 1664; 2103 sqq.