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co·ag·u·lum

(kō-ăgyə-ləm)

n. pl. co·ag·u·la (-lə)

A coagulated mass, as of blood; a clot.

[Latin coāgulum, coagulator, rennet, from cōgere, to condense : co-, co- + agere, to drive; see ag- in the Appendix of Indo-European roots.]

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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