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.

impĕrĭālis (inp-), e, adj. [imperium, II. B. 3. b. β], of the empire or emperor, imperial: statuta, Dig. 47, 12, 3: praeceptum, Cod. Th. 3, 12, 2: ornamenta, Capitol. M. Aur. 17: molestia, Aur. Vict. Epit. 2: culmen, Amm. 21, 16: imperia et omnia imperialia sic horruit, ut, etc., Capitol. Pert. 13, 1.
Adv.: impĕrĭālĭter, imperially: existimantes, Cod. Just. 6, 51, 1 fin.