Using a Word Generator to Generate a Vocabulary

If you're willing to use a word generator, use that to generate a vocabulary with a slightly larger phonology. One of my favorite things is labialized consonants, like ca and qua in your proto-lang. And then there's all sorts of fun you could do based on existing historical examples. You could have one language turn the plain velour into an African - so from ca to ca. There are even some languages that turn a labio-villeur into just a plain old w.