MOHOS is a playable word

moho Scrabble® Dictionary

noun
pl. mohos
a boundary separating the earth's crust and mantle (the region between the crust and the core)
33 Playable Words can be made from "MOHOS"
   2-Letter Words (8 found)
   3-Letter Words (13 found)
   4-Letter Words (10 found)
   5-Letter Words (2 found)