Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

The word deiuro could not be parsed. Trying a normal dictionary lookup:

dējĕro, āvi, ātum (the later form de-jūro, found in many edd., is now retained only in Gell. 1, 3, 20; 11, 6, 1), 1, v. n. [dejuro, with shortened rad. vowel; cf. Corss. Ausspr. 2, 203], to take an oath, to swear (ante- and post-class.): per omnes deos et deas dejeravit, Plaut. Cas. 3, 5, 37; id. Rud. 5, 2, 40; Ter. Eun. 2, 3, 39; id. Hec. 5, 2, 5; Varr. L. L. 5, § 6 Müll.: cum ille dejerasset, Gell. 4, 20, 9 al; Vulg. 1 Reg. 20, 17; id. Eccl. 9, 2. (In Prop. 4 (5), 3, 42, the true reading is pejerat.)

dē-jūro, v. dejero.