Source : Webster's Revised Unabridged Dictionary (1913)

Congeal \Con*geal"\, v. i.
   To grow hard, stiff, or thick, from cold or other causes; to
   become solid; to freeze; to cease to flow; to run cold; to be
   chilled.

         Lest zeal, now melted . . . Cool and congeal again to
         what it was.                             --Shak.

Congeal \Con*geal"\, v. t. [imp. & p. p. {Congealed}; p. pr. &
   vb. n. {Congealing}.] [F. congeler, L. congelare, -gelatumn;
   con- + gelare to freeze, gelu frost. See {Gelid}.]
   1. To change from a fluid to a solid state by cold; to
      freeze.

            A vapory deluge lies to snow congealed. --Thomson.

   2. To affect as if by freezing; to check the flow of, or
      cause to run cold; to chill.

            As if with horror to congeal his blood. --Stirling.

Source : WordNet®

congeal
     v : become gelatinous; "the liquid jelled after we added the
         enzyme" [syn: {jell}, {set}]