Front Matter -- Introduction: Irregularity - glimpses of a ubiquitous phenomenon -- The deeper regularities behind irregularities -- Sturtevant's paradox revisited -- Paradigm gaps in Whole Word Morphology* -- Irregularity in inflectional morphology - where language deficits strike -- Word ending-part and phonological memory: a theoretical approach* -- (Ir)regularity in nominal root compounds -- Taming affixes in Turkish: with or without residue? -- On some Latin morphological (ir)regularities -- Regularity, sub-regularity and irregularity in French acquisition -- Regularity, sub-regularity and irregularity in French acquisition -- Overabundance in Italian verb morphology and its interactions with other non-canonical phenomena -- Fighting irregularity: the reconstruction of verb morphology in Northern Catalan -- Two levels of semantics and irregular morphology in Thompson Salish clefts* -- Back Matter