5 letter words:
prick13,
4 letter words:
pick12,
pock12,
cork10,
pork10,
rick10,
rock10,
crop8,
coir6,
3 letter words:
ick9,
kip9,
kop9,
cop7,
irk7,
kir7,
koi7,
kor7,
oik7,
pic7,
rok7,
cor5,
orc5,
pir5,
poi5,
pro5,
rip5,
roc5,
2 letter words:
ki6,
ko6,
op4,
pi4,
po4,
io2,
oi2,
or2,