-tion is derived from the Latin -tio, meaning "action" or "state of being."
It is often used to form nouns from verbs or adjectives, indicating the result of an action or a state of being.
Here are some examples:
* Action: "formation" (from "form"), "completion" (from "complete")
* State of being: "motivation" (from "motivate"), "attention" (from "attend")
So, while "-tion" doesn't have a meaning on its own, it provides a crucial element in forming nouns that indicate the result or state of a verb or adjective.