興奮【こうふん】
excitement, stimulation, agitation, arousal
奮起【ふんき】
stirring, rousing oneself
奮闘【ふんとう】
strenuous effort, hard struggle, working hard, hard fighting, fierce fighting
発奮【はっぷん】
being roused, being stimulated, being inspired, being spurred on
奮う【ふるう】
to muster (e.g. one's courage), to call forth, to rouse up, to be enlivened, to be invigorated
奮って【ふるって】
energetically, strenuously, heartily