In Austronesian languages, reciprocal relations are most generally marked by productive and highly polysemous prefixes occurring in monoclausal constructions, not by reciprocal pronouns or reciprocal anaphors or quantifiers such as ‘each other’ or ‘one another’. These prefixes are reflexes of Proto-Austronesian *maR-/*paR- (Pawley & Reid 1979: 110), and of Proto-Oceanic *paRi- for languages of the Oceanic sub-branch (Pawley 1973). Not all Austronesian and Oceanic languages have retained these morphemes; some have innovated new markers (Bril 2005, Moyse-Faurie 2008). The focus here will be on languages that have retained these affixes in various Austronesian subgroups.