v. so·lid·i·fied, so·lid·i·fy·ing, so·lid·i·fies
1. To make solid, compact, or hard: an ingredient that solidifies the mixture.
2. To make strong or united: a speech that solidified her supporters.
1. To become solid: as the cement solidifies.
2. To become united: Her support is solidifying.
so·lid′i·fi·cation (-fĭ-kāshən) n.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.