Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
murcĭdus, a, um, adj. [murcus], slothful (ante-class.): dea Murcia, quae praeter modum non moveret, ac faceret hominem, ut ait Pomponius murcidum, id est nimis desidiosum, et inactuosum, Aug. Civ. Dei, 4, 16; Arn. 4, 9.