tr.v. a·bet·ted, a·bet·ting, a·bets
1. To approve, encourage, and support (an action or a plan of action); urge and help on.
2. To urge, encourage, or help (a person): abetted the thief in robbing the bank.
[Middle English abetten, from Old French abeter, to entice : a-, to (from Latin ad-; see AD-) + beter, to bait; see bheid- in the Appendix of Indo-European roots.]
a·bettor, a·better n.
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.