[1] : The Collaborative International Dictionary of English v.0.48

handily \hand"ily\ -i^ly^, adv. see handy.
   in a handy manner; skillfully; conveniently.
   1913 webster
see also:
handy 

[2] : WordNet (r) 2.0

handily
     adv 1: in a convenient manner; "the switch was conveniently
            located" syn: conveniently ant: inconveniently
     2: with no difficulty; "she beat him handily" syn: hands down
see also:
conveniently inconveniently hands down 

[3] : Moby Thesaurus II by Grady Ward, 1.0

50 moby thesaurus words for "handily":
   ably, adeptly, adroitly, advantageously, agilely, aptly, artfully,
   artistically, brilliantly, capably, cleverly, comfortably,
   competently, conveniently, cunningly, deftly, dexterously,
   dextrously, easily, effectively, effectually, efficiently,
   effortlessly, excellently, expertly, featly, functionally,
   ingeniously, masterfully, neatly, nimbly, practically,
   proficiently, profitably, readily, resourcefully, serviceably,
   skillfully, spryly, superbly, to advantage, to good effect,
   to good use, to profit, usefully, well, with consummate skill,
   with finesse, with genius, with skill

Handily >> H Words
Handily, definition of term: Handily
handily_pag1.html