Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Archĭas, ae, m., = Ἀρχίας.
† archīum or archīvum, i, n., = ἀρχεῖον, the archives (post-class.), Dig. 48, 19, 9, § 6; Mel. 3, 8 fin.: antiquissimarum gentium archiva, Tert. Apol. 19; so id. adv. Marc. 4, 7.