1. INTRODUCTION. Most Bantu languages have a set of highly productive verbal deriva-tional suffixes which alter the argument structure and semantics of basic verb roots. 1 One example of such a suffix is the Causative, which gives a verb stem causative semantics and allows it to take an extra causer argument. A prototypical instance of the use of the Causative, drawn from Chichewa (Baker 1988:1...