禍胎

祸胎
huòtāi

root of the trouble; cause of the ruin

Wiktionary

Entry Composition

1 禍 huò
  1. disaster
  2. misfortune
  3. calamity
2 胎 tāi
  1. fetus
  2. classifier for litters (of puppies etc)
  3. padding (in clothing or bedding)
  4. womb carrying a fetus
  5. (fig.) origin
  6. source
  7. (loanword) tire