亲家母

親家母
qingjiàmǔ

co-mother-in-law

Wiktionary

Entry Composition

1 亲家 qìngjia
  1. parents of one's daughter-in-law or son-in-law
  2. relatives by marriage
2 母 mǔ
  1. mother
  2. elderly female relative
  3. origin
  4. source
  5. (of animals) female