Why is it that modern English has four variations on the "wake" theme (wake, awake, waken, awaken)? I can understand it if there were dialectal variations at one point, but they're not dialectal anymore (at least, they don't seem so to me), and we still have all four.
If different dialects do tend to favor one over the others, I'd like to know about it. Also, if there are shades of meaning that I'm missing, I'd like to know about that too.
Or are they just terribly redundant?
And while we're talking about these words, why is it that wake and awake are strong verbs, while waken and awaken are weak?