Here are some examples:
* Demigod: A being who is partly divine and partly human.
* Demijohn: A large glass bottle with a rounded body and a narrow neck.
* Demilune: A crescent-shaped fortification or structure.
* Demi-tasse: A small cup for serving coffee or espresso.
The prefix "demi" can also be used to indicate something that is smaller or lesser than the full version.
For example:
* Demi-season: A period of time between the main seasons, such as spring or fall.
* Demi-glaze: A rich sauce made from reduced stock and often used in cooking.
* Demi-monde: A group of people who are considered to be on the fringes of society.
Overall, the prefix "demi" conveys a sense of incompleteness, partialness, or reduction.