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Flathead River

A river rising in southeast British Columbia, Canada, and flowing about 390 km (240 mi) generally southward across the Montana border to Flathead Lake then south and west to the Clark Fork River. The lake is surrounded by mountains and is a popular recreation region.

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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