lazyback

== English == === Etymology === From lazy +‎ back. === Noun === lazyback (plural lazybacks) (colloquial, dated) A support for the back, attached to the seat of a vehicle. Synonym: backrest === References === “lazyback”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.