ケツ 
いさぎよ.い 
() clean () pure () undefiled
    
いさぎよい (adj-i) manly, sportsmanlike, pure, upright
いさぎよく (adv) bravely, manfully
けっぱく (adj-na,n) innocence (i.e. not guilty), purity, uprightness
けっぺき (adj-na,n) fastidiousness, love of cleanliness

Links: KanjiDic: EDict : Wikimedia
Etymologies: 中文字譜 : 説文解字