Source : Webster's Revised Unabridged Dictionary (1913)

Screak \Screak\, v. i. [imp. & p. p. {Screaked}; p. pr. & vb. n.
   {Screaking}.] [Cf. Icel. skr[ae]kja to screech. Cf. {Creak},
   v., {Screech}.]
   To utter suddenly a sharp, shrill sound; to screech; to
   creak, as a door or wheel.