This question has puzzled me since I have no training in ancient Chinese and ancient phonetics. What is puzzling me is the following facts: The tones in different regions are quite different. If ...
Schuessler's reconstruction of the Old Chinese reading of 二 is *ńźi. It seems there is a correspondence between OC syllables beginning in *ń or *ńź and Mandarin syllables romanised as er. However, ...