sit someone up
phrasal verbPart ofsit-up
sit someone up — phrasal verb
1. to lift or help someone from a lying position into a seated one
1.phrasal verb
Definition
to lift or help someone from a lying position into a seated one
Example
The nurse gently sat the elderly patient up so he could take his medicine.
Thiago sat his little brother up on the bed and handed him a cup of water.
The physiotherapist sat the injured woman up slowly to check the condition of her back.