Deserving of blame or censure; blameworthy: "Rajiv's getting remarried without the divorce papers meant that he was equally culpable and that no one would be taking anyone to court" (Samrat Upadhyay).
[Middle English coupable, from Old French, from Latin culpābilis, from culpāre, to blame, from culpa, fault.]
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.