Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
mūsīvārĭus, ii, m. [musivum], a worker in mosaic (post-class.): intestinarii, statuarii, musivarii, Imp. Const. Cod. Just. 10, 64, 1; Cassiod. Var. 7, 5.