prog·ress (prŏgrĕs′, -rəs, prōgrĕs′)
1. Forward or onward movement, as toward a destination: We made little progress on our way home because of the traffic.
2. Development, advancement, or improvement, as toward a goal: The math students have shown great progress.
3. A ceremonial journey made by a sovereign through his or her realm.
intr.v. pro·gress (prə-grĕs) pro·gressed, pro·gress·ing, pro·gress·esIdiom:
1. To move forward or onward: The ship progressed toward the equator.
2. To develop, advance, or improve: Research progressed on the new vaccine.
3. To increase in scope or severity, as a disease taking an unfavorable course.
Going on; under way: a work in progress.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.