1 The ingredients of reciprocity in Cuzco Quechua

In Cuzco Quechua reciprocity is marked by means of two verbal suffixes, one of which is a marker of reflexivity, the other of which is a marker of pluractionality. The paper develops an analysis that composes reciprocity from these more basic notions. Two further ingredients that are needed will be argued to derive from independent principles: universal quantifi-cation over parts of the reciprocal plural agent derives from plural pred-ication, as has been argued by other researchers for English reciprocity; distinctness of the participants in the reciprocal subevents derives from a semantic version of Condition B. This way of composing reciprocity is not universal, other languages have dedicated reciprocal markers or make other reciprocal ingredients overt. The compositional derivation of reciprocity is therefore a clear candidate for cross-linguistic semantic variation.