Bible Dictionaries
Potash

Webster's Dictionary

(1):

(n.) The hydroxide of potassium hydrate, a hard white brittle substance, KOH, having strong caustic and alkaline properties; - hence called also caustic potash.

(2):

(n.) The impure potassium carbonate obtained by leaching wood ashes, either as a strong solution (lye), or as a white crystalline (pearlash).

Bibliography Information
Webster, Noah. Entry for 'Potash'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/potash.html. 1828.