Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
ŏlĕātus, a, um, adj. [oleum], moistened with oil, put up in oil (post-class.): pultes oleatae, Cael. Aur. Acut. 2, 37, 208; Vulg. Num. 11, 8.