"lightsomely" in the adverb sense
1. lightsomely, trippingly
moving with quick light steps
"she walked lightsomely down the long staircase"
2. light-heartedly, lightsomely
in a light-hearted manner
"he light-heartedly overlooks some of the basic facts of life"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License