for·do also fore·do (fôr-d)
tr.v. for·did (-dĭd), for·done (-dŭn), for·do·ing, for·does (-dŭz) also fore·did or fore·done or fore·do·ing or fore·does
1. To cause the death of; kill.
2. To bring to ruin; destroy.
[Middle English fordon, from Old English fordōn : for-, for- + dōn, to do; see dhē- in the Appendix of Indo-European roots.]
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.