5 letter words:
piker11,
kiter9,
trike9,
tripe7,
4 letter words:
kepi10,
kept10,
perk10,
pike10,
keir8,
kier8,
kite8,
tike8,
trek8,
peri6,
pert6,
pier6,
ripe6,
trip6,
rite4,
tier4,
tire4,
3 letter words:
kep9,
kip9,
irk7,
kir7,
kit7,
per5,
pet5,
pie5,
pit5,
rep5,
rip5,
tip5,
ire3,
rei3,
ret3,
tie3,
2 letter words:
ki6,
pe4,
pi4,
er2,
et2,
it2,
re2,
ti2,