5 letter words:
frock14,
crook11,
iroko9,
4 letter words:
fork11,
cook10,
cork10,
rick10,
rock10,
coif9,
coof9,
corf9,
fico9,
foci9,
rook8,
roof7,
coir6,
3 letter words:
kif10,
ick9,
irk7,
kir7,
koi7,
kor7,
fir6,
for6,
fro6,
rif6,
coo5,
cor5,
orc5,
roc5,
2 letter words:
ki6,
if5,
of5,
oi2,
or2,