tr.v. fore·stalled, fore·stall·ing, fore·stalls
a. To delay, hinder, or prevent (an event, for example) by taking action beforehand: "rehabilitative care, where the goal is not so much to cure disease as it is to forestall further decline" (George Anders). See Synonyms at prevent.
b. To delay, hinder, or prevent (someone) from doing something by taking action beforehand.
2. To prevent or hinder normal sales in (a market), as by buying up merchandise.
[Middle English forestallen, to waylay and rob, from forestal, highway robbery, ambush, from Old English foresteall : fore-, fore- + steall, position; see stel- in the Appendix of Indo-European roots.]
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.