Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
pĕr-ungo or -unguo, unxi, unctum, 3, v. a., to besmear, anoint (class.): corpora oleo, Cic. Tusc. 1, 47, 113: ora manu, Ov. A. A. 3, 756: vulnera, Plin. 29, 4, 28, § 90; id. 28, 9, 37, § 141: nardo perunctus, Hor. Epod. 5, 59: faecibus ora peruncti, id. A. P. 277.