6 letter words:
phreak15,
5 letter words:
hepar10,
phare10,
raphe10,
4 letter words:
kaph13,
hake11,
hark11,
park10,
peak10,
perk10,
epha9,
harp9,
heap9,
rake8,
reak8,
hare7,
hear7,
rhea7,
aper6,
pare6,
pear6,
rape6,
reap6,
3 letter words:
kep9,
hap8,
hep8,
pah8,
peh8,
ake7,
ark7,
erk7,
kae7,
kea7,
hae6,
her6,
rah6,
reh6,
ape5,
par5,
pea5,
per5,
pre5,
rap5,
rep5,
are3,
ear3,
era3,
2 letter words:
ka6,
ah5,
eh5,
ha5,
he5,
pa4,
pe4,
ae2,
ar2,
ea2,
er2,
re2,