Sorry. I was trying to stay within the rules of the game as much as possible.
Sorry for getting upset at you yesterday. A lot of things just weren't going my way that evening, your impossible word just added to my frustrations, and I really didn't have much time available to try looking up a possible solution (and once I eventually took the time to do so, I confirmed that there really were no words at all that started with sb-). Don't get me wrong, while you technically did stay within the rules and I don't mind a little challenge every now and then, perhaps try to be a little mindful that you offer a pair of letters that start words that actually exist (basically, if you can't think of any words at all that start with a certain pair of letters at the end of your word, then you should probably try a different word instead). Anyway, back on topic...
entertain