@goatsarah @simontatham I was going to say that "pointer" is probably more general and older than the Amiga. It's what the 'P' in WIMP stands for, after all.
But when I look in Smalltalk-80: The Language and Its Implementation by Goldberg & Robson, 1983, I see it says (pg 292):The arrow in the lower right part of the browser is the cursor. It shows the current location of the mouse.
which was a bit of a surprise to me.