1. Wild and dense brush; jungle.
2. Rural country; the backwoods.
[Originally military slang used by American soldiers engaging guerrillas in the Philippines before World War II, from Tagalog bundok, mountain, from Proto-Malayo-Polynesian *bunduk, elevated ground.]
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.