5 letter words:
enure5,
rerun5,
rouen5,
4 letter words:
erne4,
euro4,
nurr4,
oner4,
ourn4,
reen4,
rone4,
rore4,
roue4,
ruer4,
rune4,
3 letter words:
een3,
ene3,
eon3,
ere3,
ern3,
err3,
nee3,
nor3,
nur3,
one3,
ore3,
our3,
ree3,
ren3,
reo3,
roe3,
rue3,
run3,
ure3,
urn3,
2 letter words:
ee2,
en2,
er2,
ne2,
no2,
nu2,
oe2,
on2,
or2,
ou2,
re2,
un2,
ur2,