Allen, CynthiaMachan, T W2022-04-079781107058590http://hdl.handle.net/1885/262938The diachronic linguist views language change as changes to the internalized system of speakers. However, the linguist never has direct access to this hypothesised system. We only have access to the "external" language or linguistic output.application/pdfen-AU© 2016 Cambridge University PressSifting through the evidence: principles and pitfalls201610.1017/CBO9781107415836.0092020-12-20