POTASH


Meaning of POTASH in English

■ noun an alkaline potassium compound, especially potassium carbonate or hydroxide.

Origin

C17: from pot-ashes , from obs. Du. potasschen , orig. obtained by leaching vegetable ashes and evaporating the solution in iron pots.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.