Reset T9Word on LG Cosmos

[veloura]

I need to reset my T9Word saved words. It's annoying because if I type something incorrectly, it saves it forever and I have to change the error every time I want to type that word. For example, if I wanted to type "Thanks." it automatically changes it to "Thank71" and I have to change it every single time. why in the world would I want to type Thank71 ever? It was obviously a mistake that I made ONCE and now I have to live with it every day. How do I reset this?? Thanks.