1. A building or complex of buildings in which a state legislature meets.
2. Capitol The building in Washington, DC, where the Congress of the United States meets. See Usage Note at capital1.
[Middle English Capitol, Jupiter's temple in Rome, from Old French capitole, from Latin Capitōlium, after Capitōlīnus, Capitoline, the hill on which Jupiter's temple stood; perhaps akin to caput, capit-, head; see CAPITAL1.]
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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.