tr.v. in·ter·ject·ed, in·ter·ject·ing, in·ter·jects
1. To say or mention suddenly, often in interrupting the remarks of another: "I disagree," she interjected.
2. To insert between other elements; interpose: interjected some new images into the presentation. See Synonyms at introduce.
3. To assert (oneself) in a situation in which one has not previously been involved.
[Latin intericere, interiect- : inter-, inter- + iacere, to throw; see yē- in the Appendix of Indo-European roots.]
in′ter·jecto·ry (-jĕktə-rē) adj.
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.