Infusion (noun)

1. The action of pouring a liquid, typically hot water, over tea, coffee, etc. in order to extract its flavor or strength.
2. The liquid that is produced by infusing something, especially a medicinal preparation made by steeping a drug in a liquid.

Origin:

Late middle english: from latin infusio(n-), from infundere "pour in".

Examples:

1. She made a cup of tea by infusing the tea leaves with hot water.
2. The infusion had a delicate flavor of chamomile.
3. The patient was given an infusion of antibiotics.
4. Herbal infusion is a popular way to make a soothing drink.
5. The infusion of new ideas has led to the company's success.