n. pl. proth·e·ses (-sēz′)
1. Linguistics The addition of a phoneme or syllable at the beginning of a word, as in Spanish espina, "thorn," from Latin spina.
2. Eastern Orthodox Church
a. The preparation of the bread and wine for the Eucharist.
b. The table used for this preparation.
[Greek, prefixing, from protithenai, prothe-, to put before : pro-, before; see PRO-2 + tithenai, to put; see dhē- in the Appendix of Indo-European roots.]
pro·thetic (prŏ-thĕtĭk) adj.
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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.