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as·si·du·i·ty

(ăs′ĭ-dĭ-tē, -dy-)

n. pl. as·si·du·i·ties

1. Persistent application or diligence; unflagging effort.

2. often assiduities Constant personal attention and often obsequious solicitude.

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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