a. An image used as an object of worship.
b. A false god.
2. One that is adored, often blindly or excessively.
[Middle English, from Old French idole, from Late Latin īdōlum, from Greek eidōlon, phantom, idol, from eidos, form; see weid- in the Appendix of Indo-European roots.]
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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.