cer·ti·tude (sûrtĭ-td′, -tyd′)
1. The state of being certain or convinced of something; complete assurance; confidence: Who can say with certitude how strong the economy will be next year?
2. Something that is assured or believed to be true: "serene certitudes instilled in me by my family and teachers" (Garry Wills).
[Middle English, from Late Latin certitūdō, from Latin certus, certain; see CERTAIN.]
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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:
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