Suffixaufnahme is an unusual pattern of multiple case marking due to agreement: a nominal that is already case-marked for its own adnominal function in addition copies the case of the nominal to which it is to be related. The essays in this collection comprehensively examine this little known phenomenon in all areas where it is (or was) attested--most typically in Anatolia, the Caucasus and Transcaucasus, Aryan India, Eastern Siberia, Ethiopia, and aboriginal Australia. The definitive comparative account of Suffixaufnahme, this volume shows how an ostensibly marginal pattern of case agreement sheds light on major theoretical issues in syntax and morphology, in historical linguistics, and in typology.