perhaps not so new, but no-one cares about research
It is perhaps likely it comes originally from the Greek Mu or Mju, often used with Alpha and Omega, meaning the beginning and end, making Mu mean the middle or neither the one or the other.
Seems to fit better with how languages evolves, but i would not go so far as to correct someone who cannot see past their TV at the er thousands of years of history and creativety we had before the Simpsons.


