Webster Dictionary Definition
1.Economical in the use or appropriation of resources; not wasteful or lavish; wise in the expenditure or application of force, materials, time, etc.; characterized by frugality; sparing; economical; saving; as, a frugal housekeeper; frugal of time.
I oft admire
How Nature, wise and frugal, could commit
2.Obtained by, or appropriate to, economy; as, a frugal fortune.