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sol·i·dus

(sŏlĭ-dəs)

n. pl. sol·i·di (-dī′)

1. A gold coin of the Roman Empire used in Europe until the 1400s. Also called bezant.

2. Printing A virgule; a slash.

3. Chemistry The maximum temperature at which all components of a mixture, such as an alloy, can be in a solid state.

[Middle English, from Late Latin (nummus) solidus, a solid (sesterce), from Latin solidus, solid; see SOLID.]

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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