If something is put together quickly or at the last minute, is it a jerry-rig or jury-rig? There seems to be a mix of two different expressions.
Two similar but different phrases have led to the confusion over whether jerry-rig or jury-rig is correct when it comes to something improvised.
I always heard what sounded like jerry-rig to explain such things.
But it turns out that’s not what the correct phrase is.
Jury-rig can be a noun or a verb, and it refers to either the makeshift repairs made with tools and materials at hand or the act of making such repairs.
It’s not certain where the phrase come from. But Wikipedia has two suggestions:
The first is that it came into use as “a corruption of joury mast, a temporary mast on an old ship.
The second is that it sprang from the Latin word adjutare, which means “to aid,” via the Old French word ajurie, which means “help” or “relief.”
So where’d the jerry version come from? It seems to be a mixup with a completely different phrase.
Jerry-built is an adjective that refers to something that is “badly or hastily built with materials of poor quality.”
The origin of this phrase is a bit mysterious as well. The Online Etymology Dictionary claims it came into use in about 1856 in Liverpool and could refer to the male nickname Jerry, a name of a character in Foote’s The Mayor of Garret. It could also have come as a play of the same jury in jury-rig.
Other sources suggest it could have referred to the name of a firm of builders who might have been known for poor-quality work or that it could have referred to the walls of Jericho, which, according to Joshua 6:20, fell at the sound of Joshua’s trumpets.
While both refer to something that’s makeshift, the connotation jerry-built seems to be of lesser quality but more permanent in intention, while jury-rig seems to refer to something built more in a hurry but to be used for a more temporary basis.