On some Latin morphological (ir)regularities

Two Latin irregular case-endings are well-attested in epigraphic sources: the 2nd-declension nominative plural in -eis and the 3rd-declension genitive singular in -us. Although inconsistent with Latin productive inflectional patterns, these two forms can nevertheless be regarded as prototypicallystructured morphological classes that are defined by ‘schemas’. Both the synchronic structure and the diachronic development of these classes provide evidence for the existence of an organized storage that is midway between rote-learning and rule processing, thus supporting a scalar view of morphological (ir)regularity.