Proto-Austroasiatic language

Proto-Austroasiatic
Proto-Mon–Khmer
Reconstruction ofAustroasiatic languages
RegionSouthern China or northern Southeast Asia
Erac.3000 BCE – c.2000 BCE
Lower-order reconstructions

Proto-Austroasiatic is the reconstructed ancestor of the Austroasiatic languages. Proto-Mon–Khmer (i.e., all Austroasiatic branches except for Munda) has been reconstructed in Harry L. Shorto's Mon–Khmer Comparative Dictionary, while a new Proto-Austroasiatic reconstruction is currently being undertaken by Paul Sidwell.

Scholars generally date the ancestral language to c.3000 BCE – c.2000 BCE with a homeland in southern China or the Mekong River valley. Sidwell (2022) proposes that the locus of Proto-Austroasiatic was in the Red River Delta area around c.2500 BCE – c.2000 BCE.

500 Proto-Austroasiatic etyma were published by Paul Sidwell in 2024.