Source : Webster's Revised Unabridged Dictionary (1913)

Feck \Feck\, n. [Abbrev. fr. effect.]
   1. Effect. [Obs.]

   2. Efficacy; force; value. [Scot. & Prov. Eng.]

   3. Amount; quantity. [Scot. & Prov. Eng.]

            He had a feck o' books wi' him.       --R. L.
                                                  Stevenson.

   {The most feck}, or {The feck}, the greater or larger part.
      ``The feck o' my life.'' --Burns.