n. pl. hundred or hun·dreds
1. The cardinal number equal to 10 × 10 or 102.
2. The number in the third position left of the decimal point in an Arabic numeral.
3. A one-hundred-dollar bill.
4. hundreds The numbers between 100 and 999: an attendance figure estimated in the hundreds.
5. An administrative division of some counties in England and the United States.
[Middle English, from Old English; see dek in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.