Sap (noun)

1. The fluid that circulates in the vessels of a plant, conveying nourishment from the roots to the shoots and leaves.
2. The vital energy or enthusiasm of a person or organization.
3. The fluid that flows in the vessels of a tree or other plant.

Origin:

From middle english, from old english sæp, from proto-germanic *saipaz ("sap"), from proto-indo-european *seh₁p- ("juice, sap").

Examples:

1. The sap of the tree is used to make maple syrup.
2. The sap is starting to rise in the trees.
3. The team was playing with new sap and energy.
4. The sap of the plant was used to make medicine.
5. The sap was flowing freely in the tree.