di·shev·eled or di·shev·elled (dĭ-shĕvəld)
1. Being in loose disarray; unkempt, as hair or clothing.
2. Marked by disorder; untidy: a disheveled pile of books on the library table.
[Middle English discheveled, from Old French deschevele, past participle of descheveler, to disarrange the hair : des-, apart; see DIS- + chevel, hair (from Latin capillus).]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.