What does th latin root cline mean?

The Latin root "cline" actually doesn't stand alone. It's part of a larger root, "clinare", which means "to lean, incline, or bend".

This root shows up in many English words, including:

* Decline: To decrease or become less.

* Recline: To lean back in a relaxed position.

* Incumbent: One who holds an office or position.

* Inclination: A tendency or a preference.

Therefore, "cline" itself doesn't have a specific meaning, but it's a part of the root that signifies leaning, bending, or sloping.