n. Abbr. adv.
1. The part of speech that modifies a verb, an adjective, another adverb, or an entire clause or sentence.
2. Any of the words belonging to this part of speech, such as so, very, and rapidly.
[Middle English adverbe, from Old French, from Latin adverbium (translation of Greek epirrhēma) : ad-, in relation to; see AD- + verbum, word, verb; see wer-5 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.