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Leach

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Leach

see leech, a physician.

1. A quantity of wood ashes, through which water passes, and thus imbibes the alkali.

2. A tub or vat for leaching ashes, bark, etc. Leach tub, a wooden tub in which ashes are leached.

Origin: cf. As. Leah lye, g. Lauge. See lye.