Before I research it myself, I wanted to put this out there in case any of you already knew the answers. We were at the cemetery today and because we entered by a different gate, took different routes to get to our 6 sites (13 relatives) to plant flowers. This brought us by headstones we had never seen before. A large mill-city cemetery is interesting as it exposes you to previous names and burial customs from groups you know little about.
We saw this and neither of us recognised the script. At first glance I suspect it is not how it would have been written on paper, but based on letters made more angular for ease of carving. It is not Greek but I wonder if it is related. Latin seems farther away. I know that Cyrillic is related to Greek letters, but this looks farther away. I know there is a Coptic alphabet, but I can't recall ever seeing it, and this Armenian alphabet does not look Arabic to me. I guess that fits the geography and the trading routes pretty well.
Take your guesses, and if you actually know something, so much the better.