1. A sandy beach at a seaside resort.
2. A bright and intensely hot area in the sun's chromosphere, usually associated with a sunspot.
[French, from Italian piaggia, ultimately from Greek plagia, neuter pl. of plagios, oblique, slanting; see PLAGAL.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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.