bach also batch (băch)Informal
intr.v. bached, bach·ing, bach·es also batched or batch·ing or batch·esIdiom:
1. To live as a bachelor.
2. To live in the manner of a bachelor, as when one's spouse or partner is away.
[Short for BACHELOR.]
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.