What is the entymology of the word cursor as in a pointer for your computer screen?

Answer 1

The meaning of the Latin word cursor expresses the idea of something running (messenger, indicator, etc.).
The word cursor has been used as "a marker" since the 1500s.
A typewriter cursor was the vertical line where the next character would be printed.

It's basically evolved for usage.

Answer 2

The proper word to use is "etymology." "Entomology" is the study of insects. The word etymology itself derives from the Greek "etumologia," the study of the true sense or meaning of a word.

The word cursor derives from the same Latin word "cursor," or runner, which ultimately derives from the Latin "curro," which means to run. Hence, a cursor is a marker which "runs" around on your screen, which it quite literally does.

Answer 3

Try wikipedia