godan verb (-mu), intransitive verb
grow numb with cold; become stiff from cold
Describes fingers, hands, or other body parts losing sensation and becoming difficult to move due to cold. Often used in winter contexts.
寒さで指がかじかんで、うまく字が書けない。
My fingers are numb from the cold and I can't write properly.
手
My hands were so stiff from the cold that I couldn't turn the key well.