9 letter words:
interrupt11,
8 letter words:
inputter10,
prurient10,
7 letter words:
printer9,
purtier9,
puttier9,
reprint9,
unriper9,
nuttier7,
runtier7,
ruttier7,
6 letter words:
irrupt8,
pruner8,
pterin8,
punier8,
punter8,
purine8,
putter8,
puttie8,
turnip8,
unripe8,
nutter6,
retint6,
return6,
ritter6,
ruiner6,
tenuti6,
territ6,
tinter6,
triter6,
triune6,
turner6,
turret6,
uniter6,
5 letter words:
erupt7,
inept7,
input7,
petit7,
petti7,
prier7,
print7,
prune7,
purer7,
purin7,
putti7,
repin7,
ripen7,
riper7,
tripe7,
unrip7,
inert5,
inter5,
inure5,
niter5,
nitre5,
rerun5,
rutin5,
tetri5,
titer5,
titre5,
trier5,
trine5,
trite5,
truer5,
tuner5,
unite5,
untie5,
urine5,
uteri5,
utter5,
4 letter words:
pein6,
pent6,
peri6,
pert6,
pier6,
pine6,
pint6,
pirn6,
ptui6,
punt6,
pure6,
puri6,
purr6,
putt6,
ripe6,
trip6,
etui4,
nett4,
nite4,
rein4,
rent4,
rite4,
ruer4,
ruin4,
rune4,
runt4,
tent4,
tern4,
tier4,
tine4,
tint4,
tire4,
tret4,
true4,
tune4,
turn4,
unit4,
3 letter words:
nip5,
pen5,
per5,
pet5,
pie5,
pin5,
pit5,
piu5,
pun5,
pur5,
put5,
rep5,
rip5,
tip5,
tup5,
urp5,
ern3,
err3,
ire3,
net3,
nit3,
nut3,
rei3,
ret3,
rin3,
rue3,
run3,
rut3,
ten3,
tet3,
tie3,
tin3,
tit3,
tui3,
tun3,
tut3,
urn3,
ute3,
2 letter words:
pe4,
pi4,
up4,
en2,
er2,
et2,
in2,
it2,
ne2,
nu2,
re2,
ti2,
un2,
ut2,