Compounds of 窮する

• 窮する
  (vs-s,vi) (1) to be hard pressed
  to be at a loss
  (2) to become poor
  to be reduced to poverty
• 言葉に窮する
  (vs-i) to be at a loss for words
• 返答に窮する
  (exp,vs-i) to be embarrased for a reply
  to be at a loss for a reply