correct alphabets

my app shows several alphabets, where each alphabet contains only letters (comma-delimited) that can be the first letter of words.

I have made some wikipedia research, but I would appreciate if somebody versed in the following alphabets could tell me if the following strings contain unnecessary letters, i.e. letters that cannot stand as first letter of words.
In case, please type the full corrected strings. Thanks.




I am not able to help you with Cyrillic or Thai, but the 28 Arabic letters can all be the first letter of a word. They are not in alphabetic order however, reading left-to-right that would be:


Thanks. In the app, letters show up in reverse order than here.

Yes, that would be correct for Arabic as it is a right-to-left language.