The Collaborative International Dictionary
Sportingly
Sportingly \Sport"ing*ly\, adv. In sport; sportively.
The question you there put, you do it, I suppose, but
sportingly.
--Hammond.
Wiktionary
sportingly
adv. In a sporting manner, demonstrating good sportsmanship.
WordNet
sportingly
adv. so as to be sporting; in a sporting manner [ant: unsportingly]
Usage examples of "sportingly".
My spoken English is blank, scrubbed clean and unbranded, except for an occasional beauty spot: a deliberate sub-Saharan lilt, which I refer to sportingly as my drop of milk in the coffee.