Source : Webster's Revised Unabridged Dictionary (1913)

Perky \Perk"y\, a.
   Perk; pert; jaunty; trim.

         There amid perky larches and pines.      --Tennyson.

Source : WordNet®

perky
     adj : characterized by liveliness and light-heartedness; "buoyant
           spirits"; "his quick wit and chirpy humor"; "looking
           bright and well and chirpy"; "a perky little widow in
           her 70s" [syn: {buoyant}, {chirpy}]
     [also: {perkiest}, {perkier}]