Not sure if I understand the issue correctly, could you please provide some more detail?
A screenshot would be helpful as well.
Also, what version of Photoshop and the Operating System you're using?
The only way I know on Windows is to use File Explorer to navigate to :
C: > Users > username > AppData >LocaLow > Adobe > Linguistics > UserDictionaries > ATE User Dictionary > all > added.txt
Open file added.txt using notepad then edit the entry, save and close