7 letter words:
rolltop9,
trollop9,
5 letter words:
orlop7,
troop7,
troll5,
4 letter words:
loop6,
plot6,
poll6,
polo6,
pool6,
poor6,
port6,
topo6,
trop6,
loot4,
roll4,
root4,
rotl4,
roto4,
toll4,
tool4,
toro4,
3 letter words:
lop5,
opt5,
pol5,
poo5,
pot5,
pro5,
top5,
loo3,
lot3,
oot3,
ort3,
rot3,
too3,
tor3,
2 letter words:
op4,
lo2,
or2,
to2,