intr.v. col·lid·ed, col·lid·ing, col·lides
1. To come together with violent, direct impact.
2. To meet in opposition; conflict: "an unlikely foray by an industrial conglomerate into the terrain where entertainment and merchandising collide" (Laura Bird).
[Latin collīdere : com-, com- + laedere, to strike.]
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.