7-Up was originally called Bib-Label Lithiated Lemon-Lime Soda when it was invented in 1929. The drink probably didn’t sell well until it was renamed. The 7 is for the original size – 7 ounces – and the Up was for “bottoms up.”
The first advertising slogan for 7-Up was, “It takes the ouch out of grouch.”
That slogan probably didn’t help sales much, but the experiment was valid. Keep trying new things and don’t be surprised if you have a sudden breakthrough.