Concoction comes from Latin concoctionem ('a digesting, cooking together'), from concoquere ('to cook together, digest'), from com- ('together') + coquere ('to cook'). The historical trail runs through concoquere in Latin and coquere in Latin. Morphologically, concoction is transparent: it draws on Latin concoctionem ('a digesting, cooking together'), from concoquere ('to cook together, digest'), from com- ('together') + coquere ('to cook'). Used as a noun, concoction now means "a mixture of ingredients, especially an odd or invented one", so the present definition can be read against the older forms and meanings. The same lexical family is also visible in related forms such as concoct, concocter, and decoction. The result is a borrowed or transmitted form whose modern spelling carries a compact record of its route into English.