1. The act or an instance of suspecting something on little or no evidence: His evasiveness aroused my suspicions.
2. The condition of being suspected, especially of wrongdoing: held under suspicion of murder.
3. The state or feeling of having no confidence or certainty about something; distrust: looked with suspicion on the claims in the brochure.
4. A minute amount or slight indication; a trace: a suspicion of contempt in his voice.
tr.v. sus·pi·cioned, sus·pi·cion·ing, sus·pi·cions
[Middle English, alteration (influenced by Old French suspicion) of suspecioun, from Anglo-Norman, variant of Old French sospeçon, from Latin suspectiō, suspectiōn-, from suspectus, past participle of suspicere, to watch; see SUSPECT.]
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.