Earlier quoted context omitted.
Lawsuit for what?
IANAL, but trademark infringement? I mean, can anyone write a "For Dummies" book? To clarify there is a series called XXXX For Babies.
Honestly, I don't see how "for babies" could be trademarked since it's a literal phrase describing the product. "For Dummies" is not used literally.
That's not to say generic words / phrases cannot be trademarked. Just look at Apple. However, trademarks for a generic term must be very limited in scope initially. If the brand obtains substantial recognition, then a broader trademark may be granted. These broader trademarks are typically reserved for household names. Even Apple had trademark issues when they entered the music industry due to Apple Records.