5 letter words:
perch12,
chert10,
retch10,
crept9,
4 letter words:
pech11,
cher9,
echt9,
etch9,
hept9,
tech9,
tehr7,
cert6,
pert6,
3 letter words:
che8,
ech8,
hep8,
peh8,
pht8,
cep7,
pec7,
eth6,
her6,
het6,
reh6,
the6,
per5,
pet5,
pre5,
rec5,
rep5,
tec5,
ret3,
2 letter words:
ch7,
eh5,
he5,
pe4,
er2,
et2,
re2,
te2,