Here are some examples of how it can be used:
* "The decursus of the river was towards the sea." (The river flowed in the direction of the sea.)
* "The decursus of her life was marked by tragedy." (Her life was marked by a series of unfortunate events.)
* "The decursus of the stock market was downward." (The stock market was experiencing a decline.)
The word "decursus" is not commonly used in modern English, but it can be found in some literary or historical contexts. It is often translated as "course," "direction," or "progress" in English.