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[dashstofsk]

The 2 main changes from A to B that I can see (other than "ed") is a change in the use of EVA

There are many more differences between languages A and B. Here is one. Lately I have been looking at the curious characters  ckh  and  cth. I have found it useful to generate matrices of frequences of these and sorted by prefix and suffix. For language A I got

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For language B I got

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One significant difference is that the majority of words in language A that have these characters start with them without any prefix ( and especially with  cth  ). Their frequency in language A is ~2.6 times that in language B.