5 letter words:
minor7,
mourn7,
onium7,
4 letter words:
morn6,
muni6,
muon6,
norm6,
inro4,
iron4,
noir4,
nori4,
ruin4,
3 letter words:
mir5,
mon5,
mor5,
mun5,
nim5,
nom5,
rim5,
rom5,
rum5,
ion3,
nor3,
our3,
rin3,
run3,
urn3,
2 letter words:
mi4,
mo4,
mu4,
om4,
um4,
in2,
no2,
nu2,
oi2,
on2,
or2,
un2,