【記】per 向四面八方，colate 過濾 ---> 過濾

percolate v.過濾＝filter
【參】colander ( n.濾器 ) col 共同，ander＝under︰所有的東西都掉下去 ---> 漏勺

滲透，滲漏，滲入
Sea water percolates down through the rocks.

擴散；流傳
The news has begun to percolate through the staff.