jury-rig

From jury (“for temporary use, makeshift”, adjective) +‎ rig. Likely modelled after jurymast.

The phrase jury-rigged has been in use since at least 1788. The adjectival use of jury (“makeshift or temporary”), has been said to date from at least 1616, when according to the 1933 edition of the Oxford English Dictionary, it appeared in John Smith's A Description of New England. It appeared in Smith's more extensive The General History of Virginia, New-England, and the Summer Isles published in 1624.

See jury, rig.