tr.v. ex·cit·ed, ex·cit·ing, ex·cites
a. To arouse strong feeling in: The speaker excited the crowd. See Synonyms at provoke.
b. To arouse (someone) sexually.
c. To elicit or arouse (a reaction or emotion, for example): odd noises that excited our curiosity.
a. To cause to become more active: Lowering interest rates should excite the economy.
b. Physiology To produce increased activity or response in (an organ, tissue, or part); stimulate.
c. Physics To raise (an atom, for example) to a higher energy level.
[Middle English exciten, from Latin excitāre, frequentative of exciēre : ex-, ex- + ciēre, to set in motion; see keiə- 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.