help (someone) up (from something)
To assist someone in rising or standing up from something, such as a chair. Honey, can you help me up? I didn't realize this couch was so low to the ground! Ooh, you'll have to help me up from this couch, honey—I didn't realize it was so low to the ground!
help (someone) up
(from something) to help someone rise up from something; to help someone get up from something. She offered to help him up from the chair. Elaine helped up her grandmother who was stuck in the chair.