What's the difference between slippiness and slippy?

Slippiness

Definition:

Example Sentences:

(1) He stared not at the twitching Petrobras P36 with its concrete in the mere, not at its drill ovipositor injecting slippy black rig eggs into England, but at the sea.
(2) A software fault in the anti-lock braking system means the brakes lose power momentarily on rough or slippy surfaces.
(3) You can paint the name of your favourite rider on the road, though you are asked to use non-slippy chalk-based paint so that the riders don't come a cropper.
(4) It’s a bit slippy, but I knew I had to keep my cool,” said Jones, and she did, staying with Australia’s Angela Ballard and the Canadian Diane Roy as the more experienced pair pulled away from the pack in the final lap to take gold and silver respectively.
(5) Cons • They feel different and their slippiness makes them harder to count.

Definition:

Example Sentences:

(1) He stared not at the twitching Petrobras P36 with its concrete in the mere, not at its drill ovipositor injecting slippy black rig eggs into England, but at the sea.
(2) A software fault in the anti-lock braking system means the brakes lose power momentarily on rough or slippy surfaces.
(3) You can paint the name of your favourite rider on the road, though you are asked to use non-slippy chalk-based paint so that the riders don't come a cropper.
(4) It’s a bit slippy, but I knew I had to keep my cool,” said Jones, and she did, staying with Australia’s Angela Ballard and the Canadian Diane Roy as the more experienced pair pulled away from the pack in the final lap to take gold and silver respectively.
(5) Cons • They feel different and their slippiness makes them harder to count.