Tu·pí (t-pē) or Tu·pi (tpē, t-pē)
n. pl. Tupí or Tu·pís also Tupi or Tu·pis
1. A member of any of a group of South American Indian peoples living along the coast of Brazil, in the Amazon River valley, and in Paraguay.
2. The Tupian language of the Tupí.
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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:
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.