Historical Sound Change in Optimality Theory

Abstract

This paper deals with how to represent historical sound change within the framework of Optimality Theory. It is generally accepted in Optimality Theory that language change is characterized by employing constraint reranking. In this paper, however, I argue that historical sound change must be decomposed into a series of unranking, reranking, and ranking process in order to accommodate the gradual aspect of historical sound change. Based on the new interpretation of the dotted line, I also argue that constraint reranking should be applied not across the solid line but across the dotted line in the domain of sound change.