奮う

ふるう
to show (ability)
to wield (power)

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ふるう【奮う】

〔勇み立つ〕 be enlivened; be invigorated; be spirited; be in high spirits; 〔振起する〕 rouse up; arouse; call forth 《one's energy》.

●勇気を奮う muster [pluck, screw] up one's courage; take one's courage in both hands.