Source : Webster's Revised Unabridged Dictionary (1913)

Scantle \Scan"tle\, v. i. [Dim. of scant, v.]
   To be deficient; to fail. [Obs.] --Drayton.

Scantle \Scan"tle\, v. t. [OF. escanteler, eschanteler, to break
   into contles; pref. es- (L. ex) + cantel, chantel, corner,
   side, piece. Confused with E. scant. See {Cantle}.]
   To scant; to be niggard of; to divide into small pieces; to
   cut short or down. [Obs.]

         All their pay Must your discretion scantle; keep it
         back.                                    --J. Webster.