dephlegmate

v. t. [ imp. & p. p. Dephlegmated; p. pr. & vb. n. Dephlegmating. ] [ See Dephlegm. ] (Chem.) To deprive of superabundant water, as by evaporation or distillation; to clear of aqueous matter; to rectify; -- used of spirits and acids. [ 1913 Webster ]