7 letter words:
forsook14,
6 letter words:
irokos10,
5 letter words:
skiff15,
forks12,
frisk12,
works12,
frows11,
riffs11,
woofs11,
iroko9,
rooks9,
roofs8,
4 letter words:
fork11,
kifs11,
woks11,
work11,
frow10,
offs10,
riff10,
woof10,
irks8,
kirs8,
kois8,
kors8,
kris8,
risk8,
rook8,
sook8,
firs7,
rifs7,
roof7,
rows7,
woos7,
sori4,
3 letter words:
kif10,
wok10,
iff9,
off9,
irk7,
kir7,
kis7,
koi7,
kor7,
kos7,
ski7,
fir6,
for6,
fro6,
ifs6,
rif6,
row6,
sow6,
wis6,
woo6,
wos6,
ors3,
sir3,
sri3,
2 letter words:
ki6,
if5,
of5,
ow5,
wo5,
is2,
oi2,
or2,
os2,
si2,
so2,