What word or phrase does your mother always say?
1758, from past participle stem of Modern Latin lixiviare, from Latin lixivium, neuter of lixivius "made into lye," from lix "ashes, lye."
lixiviation lix·iv·i·a·tion (lĭk-sĭv'ē-ā'shən)
The removal of the soluble constituents of a substance by the action of a percolating liquid. Also called leaching.