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potassium bitartrate

A white, acid, crystalline solid or powder, KHC₄H₄O₆, used in baking powder, in the tinning of metals, and as a component of laxatives. Also called cream of tartar.

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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