The oddities of the bigram "ed" pt. 2: Same as it ever was.

[Jorge_Stolfi]

I mean it's not just one new word with an unusual bigram (like xe in Xerxes) and it's not all words (like a change of spelling): all chey or chdy have not been replaced by chedy in Currier language B. If some of them have been replaced, many remain: it's not a systematic replacement of a short pattern by another short pattern including ed.

But  it could be a change of spelling.  Imagine that someone is writing in German and realizes that writing both sounds of "ch" the same way is a bad idea. Then he changes the spelling of all the words that previously were written with "ch" to use "ch" or "kh" depending on the sound.  And, since he is at it, he starts writing "sh" instead of "sch", and "c" instead of "ck". 

That would change the spelling of a large number of words, but many words would not be affected.  And the frequency of "ch" would drop, but not to zero.  And  some words with "c" and/or with "h" would not be affected...

All the best, --stolfi