verb
writhe
RYTHE/raɪð/
To twist the body in pain or discomfort.
He writhes on the bed as another stomach cramp hits.

Etymology
The ancestor meant to bind or fetter, then to twist or bend something. The bodily sense shifts from twisting an object to moving one's own body in twisting motions through agony or strong emotion.
In context
those who live in meroth writhe in pain waiting for Relief because disaster has come from the Lord
More examples
- The injured player writhed in pain on the grass.
- The intense itching made her writhe under the blankets.
- She found him writhing on the floor and called an ambulance.
Forms
writhe · writhes · writhed · writhing