[leach] var of leech
[2]leach vb [leach vessel through which water is passed to extract lye] vt (1796) 1: to dissolve out by the action of a percolating liquid "~ out alkali from ashes"
2: to subject to the action of percolating liquid (as water) in order to separate the soluble components 3 a: to remove (nutritive or harmful elements) from soil by percolation b: to draw out or remove as if by percolation "all meaning has been ~ed from my life" ~ vi: to pass out or through by percolation -- leach.abil.i.ty n -- leach.able adj -- leach.er n