percolation (n.)youdaoicibaDictYouDict[percolation 词源字典]
1610s, from Latin percolationem (nominative percolatio), noun of action from past participle stem of percolare "to strain through, filter," from per- "through" (see per) + colare "to strain," from colum "a strainer" (see colander).[percolation etymology, percolation origin, 英语词源]