cost dear

verb2

1. •
   To be expensive.

   • Those extra nights tacked onto his hotel stay will cost him dear.
   • It will cost him dear to tack additional nights onto his hotel stay.
2. •
   To cause a lot of pain or suffering.

   • His intransigence will cost him dear in the end.
   • It will cost him dear to be so intransigent for so long.