姑ㄍㄨgū息ㄒㄧˊxí養ㄧㄤˇyǎng奸ㄐㄧㄢjiān

  1. 過分縱容，助長壞人壞事。《清史稿·卷二九五·隆科多傳》：「孰知朕視為一德，彼竟有二心，招權納賄，擅作威福，欺罔悖負，朕豈能姑息養奸耶？」似養虎遺患反嚴懲不貸

英to tolerate is to nurture an evildoer (idiom)​; spare the rod and spoil the child