1. Something associated with another, more important thing; an accessory. See Synonyms at attachment.
2. appurtenances Equipment, such as clothing, tools, or instruments, used for a specific purpose or task; gear.
3. Law A right, privilege, or property that is considered incident to the principal property for purposes such as passage of title, conveyance, or inheritance.
[Middle English appurtenaunce, from Anglo-Norman apurtenance, from Vulgar Latin *appertinentia, from Late Latin appertinēns, appertinent-, present participle of appertinēre, to appertain; see APPERTAIN.]
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.