re·cline [ ri kln ](past and past participlere·clined, present participlere·clin·ing, 3rd person present singularre·clines)
verb
Definition:
1. intransitive verb lie back: to lean back into a supported sloping or horizontal position, usually in order to rest or relax
2. transitive and intransitive verb tilt back: to tilt back from an upright position, or make something tilt back These seats are more comfortable because they recline.
[15th century. Directly or via French< Latin reclinare "bend back or against" < clinare "bend"]