in·sti·tu·tion·al (ĭn′stĭ-tshə-nəl, -ty-)
1. Of or relating to an institution or institutions.
2. Organized as or forming an institution: institutional religion.
3. Characteristic or suggestive of an institution, especially in being uniform, dull, or unimaginative: institutional furniture; a pale institutional green.
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.