qobofus and I decided to put some statistics together regarding letter frequency and word frequency in the dragon language. Here's what we came up with!
First is a table and a chart depecting letter frequency in all the words of the language. Letters such as "aa" and "ii" are counted separately from "a" and "i."
The left column contains the letter frequency of only the canon language. The right column contains the letter frequency of the whole dictionary. Gray notes letter frequencies that remain the same. Blue notes letters that have become more frequent and red notes letters that have become less frequent.
There are some changes but after 4,000+ new words, it's amazingly consistent! It looks like we could be using letters such as ah, i, w, q, and oo more often in new words.
Next, qobofus compiled a list of word frequency using all of the text from Word Walls.
Do "of" is by far the most common word followed by wah "to." Fin "the" is much lower than "the" would be in English, which goes to show that it is often left out.