dis·sect (dĭ-sĕkt, dī-, dīsĕkt′)
tr.v. dis·sect·ed, dis·sect·ing, dis·sects
1. To cut apart or separate (tissue), especially for anatomical study.
2. To examine, analyze, or criticize in minute detail: dissected the plan afterward to learn why it had failed.
[Latin dissecāre, dissect-, to cut apart : dis-, dis- + secāre, to cut up; see sek- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 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.