why is a lug nut called a lug nut and nut a rim nut?

Question

the griping part of the tire is called the lug.

Answer 1

Because the part that goes through the spindle is called a wheel lug.

And the nut threads onto the lug. Hence lug nut.

Answer 2

It is called a lug nut because the part you're tightening it to is called a wheel lug and you are tightening the nut to the wheel lug so it is called a lug nut