Adverb
in a manful manner; with qualities thought to befit a man
Source: WordNethaving said her say Peggy manfully shouldered her burden and prepared to break up yet another home Source: Internet
Oswald, he says, had a vision of Columba the night before the battle, in which he was told Be strong and act manfully. Source: Internet
"The Muslim horsemen dashed fierce and frequent forward against the battalions of the Franks, who resisted manfully, and many fell dead on either side." Source: Internet