nau·se·a (nôzē-ə, -zhə, -sē-ə, -shə)
1. A feeling of sickness in the stomach characterized by an urge to vomit. See Usage Note at nauseous.
2. Strong aversion; disgust.
[Middle English, from Latin, from Greek nautiā, nausiē, seasickness, from nautēs, sailor, from naus, ship; see nāu- 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.