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he·red·i·tar·i·an·ism

(hə-rĕd′ĭ-târē-ə-nĭz′əm)

The doctrine or school that regards heredity as more important than environmental influences in determining intelligence and behavior.

he·red′i·tari·an (hə-rĕd′ĭ-târē-ən) adj. & n.

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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