This is the 4848th most frequent Spanish word.
dejarlos
"Dejarlos" means "to leave them" or "to let them."
In this context, 'dejarlos' refers to letting them (other individuals) stay at a specific location.
Tengo que dejarlos antes de que oscurezca.
I have to drop them off before it gets dark.
Here, 'dejarlos' means to let them (others) leave.
Es difícil dejarlos ir después de tanto tiempo juntos.
It's hard to let them go after so much time together.
In this case, 'dejarlos' is used for leaving the items (inferred) on the table.