de·bouch (dĭ-bouch, -bsh)
v. de·bouched, de·bouch·ing, de·bouch·es
1. To march from a narrow or confined area into the open.
2. To emerge; issue: "His companions still lay in the bed of the ravine, through which the smaller stream debouched" (James Fenimore Cooper).
To cause to emerge or issue.
[French déboucher : dé-, out of (from Old French des-; see DE-) + bouche, mouth (from Latin bucca, cheek, mouth).]
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.