1. Unfermented juice pressed from fruit, especially apples, used as a beverage or to make other products, such as vinegar.
2. An alcoholic beverage made by fermenting juice pressed from fruit, especially apples. Also called hard cider.
[Middle English sidre, hard cider, from Old French sizre, sidre, from Late Latin sīcera, intoxicating drink, from Greek sikera, of Semitic origin; see škr in the Appendix of Semitic 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.