trans·act (trăn-săkt, -zăkt)
v. trans·act·ed, trans·act·ing, trans·acts
To do, carry on, or conduct: transact business over the phone; transacting trade agreements.
To conduct business: transacting with foreign leaders.
[Latin trānsigere, trānsāct- : trāns-, trans- + agere, to drive, do; see ag- in the Appendix of Indo-European roots.]
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.