The adjective serves a dual purpose in the name:
While invented earlier, the Lazy Susan became a staple of American mid-century modern design. It was the era of the "efficient kitchen" and convenient dining, leading to the ubiquity of the term in household catalogs.
For a device that works so hard to eliminate reaching, stretching, and spilled wine, the name seems almost insulting. Let’s spin the wheel of etymology and find out how this rotating tray got its guilty name.
This is where history gets hazy. If the “lazy” part makes logical sense, the “Susan” part is a ghost story. There is no definitive historical record of a specific woman named Susan who invented or inspired this device.