Er·os (ĕrŏs′, îr-)
1. Greek Mythology The god of love, son of Aphrodite.
2. often eros Creative, often sexual yearning, love, or desire: “Eros exists in Plato's and Aristotle's philosophy; behind Homer's poetry, Chopin's compositions, [and] Gauguin's exotic paintings; behind ... each and every discovery that gave humanity a new aspect” (Eleni Tagonidi Maniataki and Panos Mourdoukoutas).
a. Psychiatry Sexual drive; libido.
b. The sum of all instincts for self-preservation.
[Latin Erōs, from Greek, from erōs, sexual love.]
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.