mourn
/mɔːn/verb
with obj.
1- feel or show deep sorrow or regret for (someone or their death), typically by following conventions such as the wearing of black clothes哀悼, 悼念（通常有穿黑衣等习俗）：
Isobel mourned her husband
伊索贝尔哀悼她的丈夫
no obj. she had to mourn for her friends who died in the accident.她得向在事故中死去的朋友们表示哀悼。
1.1
- feel regret or sadness about (the loss or disappearance of something)对（失去某物）感到悲伤（或遗憾）：
publishers mourned declining sales of hardback fiction.
出版商们对精装本小说销售量下降感到遗憾。
词源
Old English murnan, of Germanic origin.