While "medius" means "middle" or "half," it is often used to refer to "half" in the context of dividing something in two.
Here are some examples of how "medius" is used:
* medius dies: midday
* medius annus: mid-year
* medius mensis: mid-month
Another word that can be used to refer to half is semis, which is often used in conjunction with other words to form compound words like:
* semis hora: half an hour
* semis gallus: half a rooster
However, "medius" is the more commonly used term for "half" in general.