4 letter words:
arum6,
mart6,
matt6,
maut6,
mura6,
mutt6,
tram6,
tart4,
taut4,
3 letter words:
amu5,
arm5,
mar5,
mat5,
mut5,
ram5,
rum5,
tam5,
art3,
att3,
rat3,
rut3,
tar3,
tat3,
tau3,
tut3,
uta3,
2 letter words:
am4,
ma4,
mu4,
um4,
ar2,
at2,
ta2,
ut2,