Meph·i·stoph·e·les (mĕf′ĭ-stŏfə-lēz′) also Me·phis·to (mə-fĭstō)
The devil in the Faust legend to whom Faust sold his soul.
Me·phis′to·phele·an, Me·phis′to·pheli·an (mə-fĭs′tō-fēlē-ən, -fēlyən, mĕf′ĭ-stō-) adj.
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.