Dawn of a New Convertible

I caught sight of a new and appealing Volkswagen vehicle earlier in the summer. Searching for the model name I located the word EOS, the Greek word for the dawn. What a great name for a car which resembles, with the top down (to my mind), a dawning sun, something about the gently curving lines. In English words eo- appears as a prefix to mean 'dawn' or 'early' as in the Eolithic age, the early Stone Age or the eohippus, a possible early form of a horse. Can you find another word containing the prefix eo-?