This is something in the context of making appointments, taken from the book titled "W is for Wasted" by Sue Grafton.
I've looked up the meaning in Merriam-Webster dictionary but it all looks slightly confusing, like several meanings might sort of be making sense.
... He says he’s in dire need of a nerve specialist and asked me to set up an appointment.
I said, “Wow. He’s not due back until the end of the week. I’m surprised he’d put up with the delay.”
Would be great to know the exact meaning.