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non·book

(nŏnbk′)

A book having little or no literary merit or substance, often published to exploit a fad.

adj.

Of, relating to, or being something other than a book, such as microfilm or microfiche in a library.

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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