godan verb (-nu), intransitive verb
freeze to death; die of cold
Describes dying from exposure to extreme cold. The reading こごえじぬ is a voiced variant that occurs in natural speech.
山で遭難して、凍え死ぬ人もいる。
Some people get stranded in the mountains and freeze to death.
暖房がないと、凍え死ぬかもしれ
Without heating, one might freeze to death.