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con·fi·den·tial

(kŏn′fĭ-dĕnshəl)

adj.

1. Done or communicated in confidence; secret.

2. Entrusted with the confidence of another: a confidential secretary.

3. Denoting confidence or intimacy: a confidential tone of voice.

4. Containing information, the unauthorized disclosure of which poses a threat to national security.

con′fi·den′ti·ali·ty (-shē-ălĭ-tē), con′fi·dential·ness n.

con′fi·dential·ly adv.

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:

Indo-European Roots

Semitic Roots

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.

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