3 Letters:
* boy
* eon
* for
* fry
* rib
* rod
4 Letters:
* born
* dory
* fray
* iron
* roan
* robe
5 Letters:
* fiber
* ribon
* robed
6 Letters:
* debris
* foreign
* froben
7 Letters:
* defibrin
8 Letters:
* defibrin
Let me know if you'd like to try for longer words, or if you have any other letter combinations you'd like to explore!