The Origin of [sh]

[Emma May Smith]

I'm not aware of that, but sounds potentially very interesting.

What actually sparked my thinking was an observation Marco and I discussed some time ago. Although e occurs very rarely at the end of a word (some may even be transcription mistakes), in more than half those cases it is preceded by either Sh or another e which is in turn preceded by Sh. A word ending e looks like it is 'missing' something from the end. What if that missing something had been moved over to the Sh?

I'm still unsure what exact shape the hypothesis should take, or how the majority of Sh relate to the initial observation, but I'm unable to dismiss the feeling that there's something vaguely right about the idea.