矣: 助词[书面语]1.(用在句末, 跟 “ 了” 相同) 短语和例子悔之晚矣。it's too late for regrets. 离家十八年矣。 it is already eighteen years since i left home.2.(表示感叹):毒矣哉! diabolical!; how ruthless! 吾老矣! i am really getting old
至矣尽矣: have done everything possible; nothing can exceed that.; that is the highest limit of perfection.; to the utmost possible degree