MUXING is a playable word

mux Scrabble® Dictionary

verb
muxed, muxing, muxes
to transmit several messages simultaneously along a single channel
27 Playable Words can be made from "MUXING"
   2-Letter Words (9 found)
   3-Letter Words (13 found)
   4-Letter Words (3 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)