v. as·sist·ed, as·sist·ing, as·sists
To give help or support to, especially as a subordinate or supplement; aid: The clerk assisted the judge by looking up related precedents. Her breathing was assisted by a respirator.
1. To give aid or support: Who assisted during the operation?
2. To be present, as at a conference: "Mr. Dick had regularly assisted at our councils, with a meditative and sage demeanor. He never made a suggestion but once" (Charles Dickens).
1. The act of giving aid; help: cleaned the garage with the assist of a friend.
a. A fielding and throwing of a baseball in such a way that enables a teammate to put out a runner.
b. A pass, as in basketball or ice hockey, that enables the receiver to score.
3. A mechanical device providing aid.
[Middle English assisten, from Old French assister, from Latin assistere : ad-, ad- + sistere, to stand; see stā- in the Appendix of Indo-European roots.]
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.