Dephlegm

from The Collaborative International Dictionary of English v.0.48

Dephlegm \De*phlegm"\, v. t. [Pref. de- + phlegm water; cf. F.
   d['e]phlegmer, d['e]flegmer.] (O. Chem.)
   To rid of phlegm or water; to dephlegmate. [Obs.] --Boyle.
   [1913 Webster]