lay up phrasal verb ( see also ↑ lay )
1 . be laid up (with something) to have to stay in bed because you are ill or injured:
I was laid up for a week with flu.
2 . to stop using a boat or vehicle, especially while it is being repaired
lay something ↔ up
Most of the yachts were laid up for the winter.
3 . lay something ↔ up old-fashioned to collect and store something to use in the future:
We started laying up firewood for the winter.