I tried naming my sword night Justice. when I get to the first three letters of night a pop up happens. Saying I used profanity. A solution to this is the pop-up does not happen until after you try to take the item out and the item will still be there. Or you could change the name to the same thing that happens when you use profanity with the chat ****

Till then a work around is misspelling the word and then correcting it with the arrow keys. I did use the search before I made this bug report