The Collaborative International Dictionary of English v.0.48:

Magnific \Mag*nif"ic\, Magnifical \Mag*nif"ic*al\, a. [L.
   magnificus; magnus great + facere to make: cf. F. magnifique.
   See Magnitude, Fact. and cf. Magnificent.]
   Grand; splendid; illustrious; magnificent. [Obs.] --1 Chron.
   xxii. 5. "Thy magnific deeds." --Milton. --
   Mag*nif"ic*al*ly, adv. [Obs.]
   [1913 Webster]