rear up
verbEtymology From rear + up.
1
To rise up, especially an animal like a horse rising up on its rear legs.
- 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; […][1877], Anna Sewell, “A Strike for Liberty”, in Black Beauty: […], London: Jarrold and Sons, […], →OCLC, part II, page 106: