Seethe v. t. [imp. Seethed (Sod obs.); p. p. Seethed, Sodden p. pr. & vb. n. Seething.]  To decoct or prepare for food in hot liquid; to boil; as, to seethe flesh. [Written also seeth.]
     Set on the great pot, and seethe pottage for the sons of the prophets.   --2 Kings iv. 38.
  seething
       adj : in constant agitation; "a seething flag-waving crowd filled
             the streets"; "a seething mass of maggots"; "lovers and
             madmen have such seething brains"- Shakespeare