The double reflex of *ai in Avestan*

An earlier version of this paper was presented at the American Oriental Society's 203rd Meeting (Chapel Hill, April 1993), and I am grateful for comments from the participants there, especially William Malandra. Mark Hale, Stanley Insler, Stephanie Jamison, P. Oktor Skjærvø, and Calvert Watkins all deserve special thanks for contributing much time and advice. The research for this paper was made possible by a grant from the National Science Foundation.