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giant squid

Any of various large squids of the genus Architeuthis, having small ovoid fins and very long arms and tentacles. Giant squids live in deep ocean waters and can attain lengths of 13 meters (43 feet).

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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