Webster's Revised Unabridged Dictionary · 1913

Clot

Clot (klot) , noun

[Old English clot, clodde, clod; akin to Dutch kloot ball, German kloss clod, dumpling, klotz block, Danish klods, Swedish klot bowl, globe, klots block; compare Anglo-Saxon clāte bur. Compare Clod, n., Clutter to clot.]

A concretion or coagulation; esp. a soft, slimy, coagulated mass, as of blood; a coagulum.
Clots of pory gore. — Addison
Doth bake the egg into clots as if it began to poach. — Bacon

Clod and clot appear to be radically the same word, and are so used by early writers; but in present use clod is applied to a mass of earth or the like, and clot to a concretion or coagulation of soft matter.

Clot , intransitive verb

To concrete, coagulate, or thicken, as soft or fluid matter by evaporation; to become a clot or clod.

Clot , transitive verb

To form into, or cover with, clots; to cause to coagulate; to make into a slimy mass.