Os·lo (ŏzlō, ŏs-)
The capital and largest city of Norway, in the southeast part of the country at the head of the Oslo Fjord, a deep inlet of the Skagerrak. Founded c. 1050, Oslo became the capital of the country in 1299. Christian IV (1577-1648; reigned 1588-1648) rebuilt the city and renamed it Christiania, a name it retained until 1925.
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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.