1. Conscious knowledge or recognition; awareness.
2. The range of what one can know or understand.
3. Observance; notice: We will take cognizance of your objections at the proper time.
4. Law Acknowledgment, recognition, or jurisdiction; the assumption of jurisdiction in a case.
5. Heraldry A crest or badge worn to distinguish the bearer.
[Middle English conissaunce, from Old French conoissance, from connoistre, to know, from Latin cognōscere, to learn; see COGNITION.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. 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.