糟糠

zāo kāngzaokang

1. chaff, husks, distillers' dregs etc (food eaten by the poor)
2. (fig.) rubbish
3. junk
4. (abbr. for 糟糠妻[zao1 kang1 qi1]) wife who goes through the hardships of poverty with her husband

Study it in Yanamino