the.com/efficient
Maximum output, minimum waste — the art of doing more with less drama.
means Achieving a desired result with the least possible waste of effort, time, energy, or money.
from From Latin efficere, to accomplish, blending ex- (out) and facere (to make) — literally to make happen, fully.
Not effectiveEfficient does it cheaply; effective does it right.
Physics borrowEngine efficiency measures useful work versus energy burned.
EconomicsMarkets called efficient when prices reflect all known information.