[German Wolfram, wolframite, tungsten, from earlier, a mineral (possibly wolframite) with a sooty appearance that when present in tin ore made the extraction of tin more difficult : Wolf, wolf (because the mineral seemed to eat up tin as a wolf eats a sheep) (from Middle High German, from Old High German; see wkwo- in the Appendix of Indo-European roots) + -ram (from Middle High German rām, soot).]
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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.