tr. & intr.v. con·gre·gat·ed, con·gre·gat·ing, con·gre·gates
To bring or come together in a group, crowd, or assembly. See Synonyms at gather.
Involving a group: congregate living facilities for senior citizens.
[Middle English congregaten, from Latin congregāre, congregāt- : com-, com- + gregāre, to assemble (from grex, greg-, herd; see ger- in the Appendix of Indo-European roots).]
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.