丁母憂 [－－忧]

Jyutping ding1 mou5 jau1
Pinyin dīng mǔ yōu

Definitions (Wiktionary)
  1. verb, literary
    to mourn the passing of one's mother
    (syn.) 丁内忧, 丁內艱, 丁內憂, 丁内艰