One of the most puzzling questions in Vedic Sanskrit and Avestan is how word-final -ah turns into an -o.
Here's a new proposal that explains the super complex development of fricatives in Indo-Iranian, with a special focus on Avestan and Old Persian.
Also a cool fact: Ahura Mazda is written in Assyrian as as-sa-ra ma-za-áš.
Paper (it's been great to cite works from the 19th century, 1882, 1888, 1889 ...):
The development of Indo-Iranian voiced fricatives - lingbuzz/007911
The development of voiced sibilants is a long-standing puzzle in Indo-Iranian historical phonology. In Vedic, all voiced sibilants are lost from the system, but the details of this loss are complex an - lingbuzz, the linguistics archive






