As for word formation , most Austroasiatic languages have a variety of derivational prefixes , many have infixes .
Suffixes are almost completely non-existent in most branches except Munda , and a few specialized exceptions in other Austroasiatic branches .
As for word formation , most Austroasiatic languages have a variety of derivational prefixes , many have infixes , but suffixes are almost completely non-existent in most branches except Munda , and a few specialized exceptions in other Austroasiatic branches .