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spod·u·mene

(spŏjə-mēn′)

A greenish to pinkish or lilac mineral, LiAlSi₂O₆, that is used as a source of lithium and in transparent varieties as a gemstone.

[French spodumène, from German Spodumen, from Greek spodoumenos, present participle of spodousthai, to be burned to ashes, from spodos, wood ashes (because the mineral becomes ash gray when exposed to air).]

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:

Indo-European Roots

Semitic Roots

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.

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