backrest

nounmasculine/ẽˈkoʃtu/medium

en·cos·to

Definition

Part of a chair, sofa, or seat where one rests one's back.

This chair has a very comfortable backrest.

The car seat's backrest is adjustable.

syn

Common collocations

chair backlumbar supportreclining back

De 'encostar' + sufixo '-o'.