Source : Webster's Revised Unabridged Dictionary (1913)

Labefaction \Lab`e*fac"tion\, n. [See {Labefy}.]
   The act of labefying or making weak; the state of being
   weakened; decay; ruin.

         There is in it such a labefaction of all principles as
         may be injurious to morality.            --Johnson.