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.

Ărūpĭum, ii, n., = Ἀρούπεινον, Strabo, a town in Illyria, now Auersperg, Itin. Anton.
Hence, Ărūpīnus, a, um, of or pertaining to Arupium: Arupinis natus in arvis, Tib. 4, 1, 110.