7 letter words:
trekker15,
6 letter words:
korero10,
retook10,
retore6,
rooter6,
torero6,
5 letter words:
koker13,
roker9,
terek9,
toker9,
troke9,
retro5,
rotor5,
4 letter words:
keek12,
kook12,
keet8,
kero8,
kete8,
keto8,
kore8,
koro8,
koto8,
reek8,
reke8,
roke8,
rook8,
teek8,
toke8,
toko8,
took8,
trek8,
rete4,
root4,
rore4,
rort4,
rote4,
roto4,
teer4,
tore4,
toro4,
torr4,
tree4,
3 letter words:
eek7,
eke7,
erk7,
ket7,
kor7,
oke7,
rok7,
ere3,
err3,
oor3,
oot3,
ore3,
ort3,
ree3,
reo3,
ret3,
roe3,
roo3,
rot3,
tee3,
toe3,
too3,
tor3,
2 letter words:
ko6,
ee2,
er2,
et2,
oe2,
oo2,
or2,
re2,
te2,
to2,