5 letter words:
pucer9,
punce9,
prune7,
4 letter words:
prez15,
puce8,
crue6,
cure6,
curn6,
ecru6,
pern6,
puer6,
pure6,
unce6,
rune4,
3 letter words:
cuz14,
zep14,
rez12,
cep7,
cup7,
pec7,
cru5,
cue5,
cur5,
ecu5,
nep5,
pen5,
per5,
pre5,
pun5,
pur5,
rec5,
rep5,
ruc5,
urp5,
ern3,
nur3,
ren3,
rue3,
run3,
ure3,
urn3,
2 letter words:
pe4,
up4,
en2,
er2,
ne2,
nu2,
re2,
un2,
ur2,