Affecting valence in Khumi
This paper treats the repertoire of valence-affecting constructions found in Khumi (Tibeto-Burman, Bangladesh). In addition to a productive middle, marked by <i>a</i>-, and a semiproductive causative prefix, <i>p</i>-, Khumi has productive suffixal benefactive/malefactive and causative/applicative constructions. The first of the suffixal constructions is organized around a benefactive core but shows signs of generalization to participants with other semantic roles. The causative/applicative construction Khumi exhibits is distinct from other types of causative/applicative isomorphism that have been described, as it apparently lacks any of the more widely attested distributional motivations for its different senses.