Proto-Austronesian historical relations on the development of the proto-melayic aspect of Malay with Lampung language

The purpose of this paper is to determine the facts of language that have historical relations in comparative diachronic linguistics studies. The existence of the Lampung language (LL) as a reflection of the Proto *WPM was initially studied by Dyen 1965 and has been conservative for four decades or forty years old. During those four decades, apart from Dyen 1965, the research results showed 89.1% (Figure 0); there is also Walker's (1976) inference at the observation point of Way Lima Lampung used 200 Swadesh Vocabulary Lexicon, the calculation result is 82.2%. Furthermore, Sudirman and Fernandez, the National Seminar on Austronesian Language and Culture II, studied the "Status of the Komering Isolect in the LL Group" the results of the 82.16 % Dialectometric Lexicostatistics calculations were close to the results of Walker's previous study of 82.2%, so that the historical relation of the isolect with the status of a conservative dialect can be observed in Figure 2. In addition to conservative results, there are also innovative results, namely the occurrence of share retentions and share innovations shown by the results of the 48.5% Dialectometric Lexicostatistics calculation as the realization of the historical relation between  Malay Language (ML) and Lampung Language (LL).