Economical (adjective)

1. Using resources carefully and without waste.
2. Inexpensive and providing good value for money.
3. Relating to the management of the resources of a community or country.

Origin:

From middle english economicall, from old french economique, from latin ōeconomicus ("of household management"), from ancient greek οἰκονομικός (oikonomikos, "of household management"), from οἶκος (oikos, "house") + νόμος (nomos, "law, custom").

Examples:

1. She is very economical with her money.
2. The car is economical on gas.
3. The government's economic policies are intended to be more economical.
4. She is an economical cook.
5. He is an economical speaker, he uses few words.