This paper addresses the issue of isolating word structure and its
origins in the Austronesian and Papuan languages of eastern Timor. McWhorter (2007) claims that both groups of languages evidence
extensive loss of grammatical complexity as a result of “interrupted transmission” due
to significant non-native acquisition. I refute McWhorter’s assertion that the eastern
Timor languages are not “normal” through a detailed exposition of their morphological
complexities. Whilst recognising that they are isolating leaning, I argue that there is
nothing “unnatural” about the grammars of these languages and that phonological changes
within the Timorese Sprachbund provide sufficient explanation of their morphological
profiles.