clot (n.)youdaoicibaDictYouDict[clot 词源字典]
Old English clott "a round mass, lump," akin to Dutch kloot "ball," Danish klods "a block, lump," German Klotz "lump, block;" probably related to cleat and clod.[clot etymology, clot origin, 英语词源]
clot (v.)youdaoicibaDictYouDict
early 15c., from clot (n.). Of fluids from 1590s. Related: Clotted; clotting.