frugal Look up frugal at Dictionary.com
1590s, from M.Fr. frugal, from L. frugalis, from undeclined adj. frugi "economical, useful, proper," originally dat. of frux (pl. fruges) "fruit, profit, value," related to fructus (see fruit). Sense evolved in L. from "useful" to "profitable" to "economical." Related: Frugally.