Source : Webster's Revised Unabridged Dictionary (1913)

Especially \Es*pe"cial*ly\, adv.
   In an especial manner; chiefly; particularly; peculiarly; in
   an uncommon degree.

Source : WordNet®

especially
     adv 1: to a distinctly greater extent or degree than is common; "he
            was particularly fussy about spelling"; "a
            particularly gruesome attack"; "under peculiarly
            tragic circumstances"; "an especially (or specially)
            cautious approach to the danger" [syn: {particularly},
             {peculiarly}, {specially}]
     2: in a special manner; "a specially arranged dinner" [syn: {specially}]