Yes it does have some bearing and I think it's reasonable to suggest that "rosetta" is part of the common language especially in the context of translation. I recall that Microsoft has had problems defending "Windows", even though it's a registered trademark. I'm not a lawyer, but my understanding is that the main consideration is whether someone could be seen as "passing off" their work under the name of a competitor. The courts won't allow me to exploit your reputation to sell my products.