Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
ŏlĕāris, e, adj. [oleum], of or belonging to oil, oil-: oleares cotes, i. e. which are moistened with oil, oil-stones, Plin. 34, 14, 41, § 146.
ŏlĕārĭus, a, um, adj. [oleum],