Why will autocorrect/suggested words not keep words deleted? GALAXY S6

[AC Question]

This might sound stupid, but I tried to delete a learned word on my phone. It deleted but the next day it was showing up again as if I typed it but I never did. So I deleted it again and so far it hasn't shown up as a suggested word but I'm wondering why it came back and has this happened to anyone else???

 

[Golfdriver97]

Welcome to the forums. I would try clearing the cache on the keyboard. See if that helps.