From a technical point of view, such a context menu is a graphical control element.
[1][2] Microsoft Office v3.0 introduced the context menu for copy and paste functionality in 1990.
Borland demonstrated extensive use of the context menu in 1991 at the Second Paradox Conference in Phoenix Arizona.
Borland Quattro Pro for Windows v1.0 introduced the Properties context menu option in 1992.
Context menus are sometimes hierarchically organized, allowing navigation through different levels of the menu structure.