laid up

adjective

Suffering from or affected with an illness: down, ill, sick, unwell. Chiefly Regional poorly. See health/sickness.

1.  Also, sick in bed. Ill and confined to bed, as in I was laid up for a week with the flu, or Sally can't come outside; she's sick in bed. [Mid-1500s]
2.  Put in a safe place, as in The ship was laid up in dock with engine trouble, or The hikers were laid up in a cave during the storm. [Mid-1600s] Also see under lay in; lay someone low.

The adjective has one meaning:

Meaning #1: ill and usually confined