intr.v. ap·per·tained, ap·per·tain·ing, ap·per·tains
To belong as a proper function or part; pertain: problems appertaining to social reform.
[Middle English appertenen, from Old French apartenir, from Vulgar Latin *appartenēre, from Late Latin appertinēre : ad-, ad- + pertinēre, to belong; see PERTAIN.]
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.