tr.v. out·grew (-gr), out·grown (-grōn), out·grow·ing, out·grows
1. To grow too large for: The child outgrew all his clothes.
2. To lose or discard in the course of maturation: She outgrew her youthful idealism.
3. To surpass in growth: Spring lambs were outgrowing the piglets.
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.