English

lazyback

From lazy + back.

A compound of lazy + back

Middle Low German lasich ‘slack, feeble, lazy’

English lazy

Proto-Germanic *baką ‘back’

Proto-West Germanic *bak

Old English bæc

Middle English bak ‘the back’

English back

Today it means

noun A support for the back, attached to the seat of a vehicle.

Language periods are conventional ranges, not dates for this word.

Etymograph / lazyback