Talk:2896: Crossword Constructors
The top ten most common letters in the Concise Oxford English Dictionary, and the percentage of words they appear in, are:
E – 11.1607%
A – 8.4966%
R – 7.5809%
I – 7.5448%
O – 7.1635%
T – 6.9509%
N – 6.6544%
S – 5.7351%
source: https://www.rd.com/article/common-letters-english-language/
...
At least one of those "words" is already available ...oreta is a genus of moths: https://en.m.wikipedia.org/wiki/Oreta
