Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Morbōvĭa (or Morbōnĭa), ae, f. [morbus], the land of disease, sickdom, vulg. in execrations: abire Morboviam jusserat, go to the devil, Suet. Vesp. 14.