5 letter words:
fruit8,
refit8,
erupt7,
tripe7,
uteri5,
4 letter words:
pfui9,
fire7,
fret7,
frit7,
reft7,
reif7,
rife7,
rift7,
tref7,
turf7,
peri6,
pert6,
pier6,
ptui6,
pure6,
puri6,
ripe6,
trip6,
etui4,
rite4,
tier4,
tire4,
true4,
3 letter words:
eft6,
fer6,
fet6,
feu6,
fie6,
fir6,
fit6,
fur6,
ref6,
rif6,
per5,
pet5,
pie5,
pit5,
piu5,
pur5,
put5,
rep5,
rip5,
tip5,
tup5,
urp5,
ire3,
rei3,
ret3,
rue3,
rut3,
tie3,
tui3,
ute3,
2 letter words:
ef5,
fe5,
if5,
pe4,
pi4,
up4,
er2,
et2,
it2,
re2,
ti2,
ut2,