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The Usage Panel is a group of nearly 200 prominent scholars, creative writers, journalists, diplomats, and others in occupations requiring mastery of language. Annual surveys have gauged the acceptability of particular usages and grammatical constructions.
A country of western South America on the Pacific Ocean. Inhabited since at least the 9th millennium BC, it was the center of the Inca Empire after the 12th century AD. Francisco Pizarro's conquest of the Inca in 1533 led to the establishment in 1542 of the Spanish viceroyalty of Peru, which in time included Panama and all of Spanish South America except Venezuela. Peru achieved full independence from Spain in 1824. Lima is the capital and the largest city.
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.