Source : Webster's Revised Unabridged Dictionary (1913)

Jokingly \Jok"ing*ly\, adv.
   In a joking way; sportively.

Source : WordNet®

jokingly
     adv 1: in jest; "I asked him jokingly whether he thought he could
            drive the Calcutta-Peshawar express" [syn: {jestingly}]
     2: not seriously; "I meant it facetiously" [syn: {facetiously},
         {tongue-in-cheek}]