Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
* myrtĕŏlus (murtĕŏlus, myr-tĭŏlus), a, um, adj. dim. [myrteus], of the color of myrtle-blossoms: myrteolo modo crine viret (al. murceolo, al. murciolo), Col. poët. 10, 237.