rear up

• rear + up

rear up (third-person singular simple present rears up, present participle rearing up, simple past and past participle reared up)

1. To rise up, especially an animal like a horse rising up on its rear legs.
   • 1877, Anna Sewell, Black Beauty Chapter 23

     She had a good idea of what was coming, and the moment York took the rein off the terret in order to shorten it, she took her opportunity, and reared up so suddenly, that York had his nose roughly hit, and his hat knocked off

• parure, uprear