宿ㄙㄨˋsù草ㄘㄠˇcǎo

  1. 隔年的草。《禮記·檀弓上》：「朋友之墓，有宿草而不哭焉。」

英grass that has grown on a grave since last year, (fig.)​ grave, to have died long ago, fodder provided to animals for the night