ergonomic

adj

Etymology: Dated 1950 C.E.; ergo- + -nomy + -ic, from Ancient Greek: ἔργον (érgon, “work”) and νόμος (nómos, “distribution”).

1. Of or relating to the science of ergonomics.
2. Designed for comfort or to minimize fatigue.

   “But those who attack violists shouldn't throw resin. Once the ergonomic viola catches on what instrument will be immune?”