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bit·ter·root

(bĭtər-rt′, -rt′)

A perennial herb (Lewisia rediviva) native to western North America, having showy pink or whitish flowers and a bitter but edible fleshy root.

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bitterroot

Lewisia rediviva

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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