driveshaft
UK[ˈdraɪv.ʃɑːft]US[ˈdraɪv.ʃæft]
n
a rotating shaft in a vehicle that transmits power from the engine to the wheels or other driven parts.
Morpheme Breakdown
drive
shaft
drive
to propel, force to go
shaft
a long, slender, cylindrical object
Etymology
the compound noun "driveshaft" is a modern mechanical term formed from two old english roots. the first element, "drive," originates from the proto-germanic verb drībaną, meaning "to push, drive," which conveys the concept of transmitting motive force. the second element, "shaft," descends from proto-germanic skaftaz, referring to a long, straight rod or pole. when combined in the late 19th or early 20th century, these elements logically describe a specific component: the rod or shaft whose primary function is to drive or transmit rotational power, perfectly encapsulating its role in automotive and mechanical systems.
Analysis
Structure: drive + shaft
drive (from old english drīfan, meaning "to propel, force to go"); shaft (from old english sceaft, meaning "a long, slender, cylindrical object").
Examples
the mechanic replaced the worn universal joint on the car's driveshaft.
a loud clunking noise from underneath the vehicle can indicate a problem with the driveshaft.
the power from the transmission is delivered to the rear axle via the driveshaft.