The word list which is used in this game includes 5470 entries of 5 letters. They have been selected from
this online dictionary, created by
Richard Zimmermann.
As far as orthography is concerned, accented letters have been replaced with non-accented ones (e. g. áglǽca > aglæca).
The letter "k" is not given, since it is replaced by "c".
For a first approach to Old English vocabulary you can read
this core word list, published by C. Rauer (University of St Andrews).
I used a
wordle clone (written by A. Antunović).