5 letter words:
petit7,
petti7,
tripe7,
tetri5,
titer5,
titre5,
trite5,
4 letter words:
peri6,
pert6,
pier6,
ripe6,
trip6,
rite4,
tier4,
tire4,
tret4,
3 letter words:
per5,
pet5,
pie5,
pit5,
rep5,
rip5,
tip5,
ire3,
rei3,
ret3,
tet3,
tie3,
tit3,
2 letter words:
pe4,
pi4,
er2,
et2,
it2,
re2,
ti2,