Recline (verb)

1. To lie back or lean in a comfortable position.
2. To lower the back of a seat so that one can recline.

Origin:

Re- + cline, from latin clinare 'to bend, lean'.

Examples:

1. I like to recline on the couch and watch TV on lazy weekends.
2. I reclined my airplane seat to try to get some rest during the long flight.