Thrift (noun)

1. The practice of using resources carefully and not wastefully.
2. The act of being frugal and saving money, especially through careful management of resources.

Origin:

Derived from the old english word "thrift" meaning "prosperity".

Examples:

1. Thrift is a key element of personal finance.
2. The store is known for its thrift prices.
3. The family's thrift was legendary.
4. Thrift is a virtue that is becoming more important.
5. The company's thrift measures helped them weather the recession.