ⲙⲙⲟⲛ ϩⲗⲓ ophadece! Indeed the use of 'ⲉ' in Old Nubian doesn't conform with the rules of the Greco-Bohairic pronunciation. I think most of the work out there (academic or not) about the Bohairic pronunciation ignore clues from Old Nubian. The reason is that researchers are usually working on one language but not the other. Also the researchers working on Old Nubian should benefit from the Coptic pronunciation. For example in the link that I shared in my previous post, the transliteration of 'ⲧ' was 't' while the Arabic translation was 'd', that's because the creator of the post had no idea that at the time they borrowed the Coptic alphabet, 'ⲧ' was actually pronounced as 'd'.
I would also like to add that the issue isn't about proving that Greco-Bohairic is wrong, because indeed it is. The issue is more about proving the correctness of the authentic Bohairic pronunciation. In my opinion, the debate should be about the authentic Bohairic pronunciation versus the academic one which is based on the Koine Greek pronunciation.
ⲟⲩϫⲁⲓ
