Sidwell (2006) argues that Acehnese and Chamic had often borrowed Austroasiatic words independently of each other, while some Austroasiatic words can be traced back to Proto-Aceh-Chamic.
sˈɪdwɛl tˈuː θˈaʊzənd sˈɪks ˈɑːɹɡjuːz ðæt ɐseɪnˈiːz ænd tʃˈæmɪk hæd ˈɔfən bˈɑːɹoʊd ˌɔːstɹoʊsɪˈæɾɪk wˈɜːdz ˌɪndᵻpˈɛndəntli ʌv ˈiːtʃ ˈʌðɚ, wˌaɪl sˌʌm ˌɔːstɹoʊsɪˈæɾɪk wˈɜːdz kæn biː tɹˈeɪst bˈæk tə pɹˈoʊɾoʊɐsˈeɪtʃˈæmɪk.